1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9064074b1ebf3d571539adfae7c2f2fa5e4fc89f3c2f0b1a53b066858666fc35. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cdbbb162-6fb7-4322-bc12-6778e660d04b.json and https://artists.proofprofile.net/proofs/artist/cdbbb162-6fb7-4322-bc12-6778e660d04b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9b6d5e98e37297d203c62b48a9ad1668b897c13bc06efcbf5f01c067d84026. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FA2050090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac755a3270b15a9f5302dac79913e6fbfdb1c72f1d8ca3c89d5e3a89b9c66fd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FA2050130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f45e299982eaafda2767f1a50b0edebc994db95d1ff44a8fb34e2a9450b4da. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FA2050089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa2920328a739a498e2e1388d011cd906a4267c8133c54f8243025b77d227e6. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:08:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FA2050133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffd131048a483ff33e58bba396b5396eb2012481ea1b449c1bb99c54b27712c. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:28:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FA2050298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef19fc93c8fd3abb97b0670b4fb43891ad2b215c6ae24713122e9f5bc502cabe. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FA2050345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7127ca22ddd9afc88527a03960a45efe358eca5a76f0ae8b285612b369e4f632. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FA2050355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4e48705bf86493450269b2ad8dd7be0b552a26fcaf8d447d74d94e1694f934. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:03:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FA2050358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90048ea51540ba9bb212e0d0cbe838ebc1721566ddde6ca871a9b3b33283c61. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:08:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91729239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedbca3c0e06608f90ba06ed6944601dfc4b6e9cbcd1c41e62942cf595348c6f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91729386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfac37e6025332c6c9cb30ad295b178928d564776a782d24a092ceae8b6afd9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91729388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e9b472680d425522b3690c3cb4bc61315e7671f4907605c7a363958956bb8d. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:27:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91729391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89eaea2745cd63c0edcbc154c9f569d1865ddd5098661f233725f991d4a2dd0. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91728915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fcf5f32fd736d9b8a85b31de6a4d41776a2e188098667d5fcac58418cb7cd1. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91731786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329621fb953983bd07c8e40b019494da5443fa4c37aa2bf7d115af8cc1683333. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91732164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68168cd591844cf642187e40d191ead11ae986ce920a3c941d366efec7f82f66. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91732168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e88707dcb3ee8d28a6d4b36437344e8ef79be2060ed0c099bc038bad1661b4. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:53:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91732173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9dd5486567f1fb88f9f205d6ca612a65144e7009d0977f7123ee17d9facc05. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91729737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66fe21ee92e1da19eeb555fd0e4037997a528b06977e24930f70cc61241a8ffa. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91732175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b162e41678ac1d3d6b83b0a585acca5396eed82038816c8fe8bcaa0527c0b7. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMKSC2101713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe770fc306560921fa825242e40e9d02477c31ecfbf5c93ea3060d05cafd6f37c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMKSC2101716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53976e3eae5e9eaa8c6451a89bcff7ac6333f899cbe2327f29067a51af0c33be. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMKSC2101718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb52c9e8f515f63035281d18c5d1e8d3a86686b8298e12a2c9765719e694a2d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72410311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6541db51b2750c320346f64f254f2748d50df5cffcf1d39667c3ab9c692d97. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7819554491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74590f77491dd6a1738ce9fb521c9e8dda2ddf31dd893315f476901f92caf9e2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72410914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a62198007550dffcf7ac341408e858cd3b43f49fa9b65d5ab0f8f251ef5bf4. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72411803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cb68192c4de057df13ea30d6685886c725fea0fc78635712dd4f92c8969e75. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72412493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bc9af5a5eef5549fa65476eebb8844f39bb2021b1443b3c82245ae3fe17124. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72413090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a62198007550dffcf7ac341408e858cd3b43f49fa9b65d5ab0f8f251ef5bf4. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72411803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8012a756dcb7f00819a9e189425b2049ad1cb18b70993833f162647803854c. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72412674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7dc97a8d1501c83157a490a2d34e6ed238d9ad85e49c90c8d16f7048fe11c11. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72412679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a71eb5227986cbaf9a4fbebb1c7b6321b602e5708545530a2b6e6e41b129c4. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72412671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab481a3e2b5648eda15d4ee8cbf770223ce465e9426d6b4c83140978a6a6a42e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72411401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4582be9dfb063af3418d3ef61064119840ffc4a91b1d8ae58a21956eaf456b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72412678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32214977cb6b5d4a89c40427d718e1a47d65f5b5b638d2f8823c3f25e3e20d9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72412198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62ca7f8a2245f68630dbe7348bce0aa0761e8744578150574429294d4a4a308. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72413970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0758a23d8874bb32c4d281a5c1de971527f03f0eb559178c962da67f740e24. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72413972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f2061c5091e061bbb77fcb7fbd2a355d057b99d2bc8f15c46334d15b1243b6. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72413982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91a6e0ca7e6474ec38b5b737daeb002e6c7a7fb704d063136dc9cbe791230a7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72413985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb52c9e8f515f63035281d18c5d1e8d3a86686b8298e12a2c9765719e694a2d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72410311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50138f686c9681fc0773224bca29d0e12a1bdab7e204abd9ddb93bb694ff9754. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72412670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cb68192c4de057df13ea30d6685886c725fea0fc78635712dd4f92c8969e75. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72412493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f59e4382d29a6ebce8ac0919120f6423338c80f6efb2f62f5d68761cbf2dd79. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72412675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bc9af5a5eef5549fa65476eebb8844f39bb2021b1443b3c82245ae3fe17124. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72413090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe306e17d1a1a036d11a106977301ed1d4760ea875eea7dff49d2629f04cee190. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72412676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a62198007550dffcf7ac341408e858cd3b43f49fa9b65d5ab0f8f251ef5bf4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72411803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7dc97a8d1501c83157a490a2d34e6ed238d9ad85e49c90c8d16f7048fe11c11. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:21:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72412679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73d63fd571b2547ed4419dac4c8d80f230be8616ec25f4ea0d7ab166531dd11. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72412673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74590f77491dd6a1738ce9fb521c9e8dda2ddf31dd893315f476901f92caf9e2. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72410914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7359f4261e13f4f11da89c86964a2048c58498f4d3e1fd0ee2037e3c4e2e1f. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72412672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371d1c4820bed88023932cf697d037b144589f7c49a71397589577db57891704. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:29:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72500814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0827fe73b46e3e1c2f10f80cd339678c4be24857155db9e4f8e533369f5b6029. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72500818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51922da4862899311f8bc1c88374d6d822ed640bbc72ec59e6e424936d384e1d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72500820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167ffadf7a2f967e055af07d4d0d5f90f1d5e3844049783d98a97c4f414a70ed. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72500821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542dc9c10e81f9e7c9634587e6f894a6cda8ad09bef28c2a1e7779705fb6a3dc. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:03:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72500822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f42f5412335f8c157dae51fca358e06d4a16456476e3454f657a128ca4ded92. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72500823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1132510ebe9c9b04d8897d2cf5d3cf0defa2bf36e0be03cc3636e2d536fefcd6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72500824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26354994eab36b59c99d7b03125b00392e5f6c3678e35889525f0690c1be5303. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72500825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7565c09684ea0e67689475c1d46c98cfdbc050134e5b3749137519a416d4aa. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72500829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0e207f0e8468ca657f14d203ccfcd49af6ac4634fd977b6b504eadb8b20b42. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72500830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f7db1706ad111304a6a186b6d8335cc446500e507d4c916c420fca48438a76. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:02:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72500834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9261ee2ecfdc98ba0cfc46116f90c0e0093043494a6e8e8b92b95cf2960235b0. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72500835.
Lifers (feat. Key Glock, Foogiano & Ola Runt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36807fa88429c321f6be207b6cb73963f386147be53b8337397110e2be3430dc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT22004401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ab4c39ffbd9c648b2078dadddf7d80d58f6ef4cf64b40da9f59b9d869f6453. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72022120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2062d23750b22cded5f39beb6281eeb108e637983790433578d6c781f19fe21c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2003113.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47c93d2e0cd7bbd7b41dc5f64839f3e5875a45c385118df5e2b42fb74964da8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEM1983294.