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 0x5957dd9de873f741860f62bac5f20b3f26c2a4aeac00e2b22937f6d096df73e5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff8357c8-f94f-486e-8b89-27cf5d045912.json and https://artists.proofprofile.net/proofs/artist/ff8357c8-f94f-486e-8b89-27cf5d045912.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 0x304c9258f9b636c0eee997675051337fdb1301793c6081c26a9fe3de1e05dba3. 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/USCGH1780018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2473365025a8d5ca57094a1450eb50b9868e9deab0b2b038046350729be20b5. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:54:19Z), 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/USCGJ1718464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7dd7547e11c206f30a9157329d8fa387a25585e5a08abfa202b08a56b17977. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USCGJ1718466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc38ac77dae86d6fa2380286abc36ca166c93bdef29128ba578aa24f0e833167. 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/USCGH1786867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf92a22f533832a166a14916f002eb3020610b896368fa7e4e4c3eb77d40b4b. 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/USCGH2057008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cf74bbff6b150db308fe9b0c20099a960f3f5aa17d8fb9950fe09bddee6c46. 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/USDY42051074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc313519969c9c02d0c883d93cec4ab7334105064bcce000aaed7692a3a8d8cf7. 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/FRX202029847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd9371ddc5222236d1a370ca53a9a332f21805f598b4988fee1e21e60551c48. 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/USDY42051078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c94a9b6a47eb9bf2b86db0b1629e151585dee78c93f48fb3de202f3d04bfde. 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/DGA0M2376623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6051f73ec4210fb7fba9466aac94fce295716b36ae0647417b0bb389b7ca2a1a. 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/DGA0L2366567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23003976c55c1346db1f56f1b7da4c1bc4aa4d1b31ee5475d97c8b706ba76da6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DGA0L2366568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e84fa70dd2729e157884bb848df96172b100041a3f949c9ef53a797541d370. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DGA0H2388508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d4a104e1622c87a4fe27be13a77f52e6e39937f451eb8fa22f425090ab19ba. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DGA0L2366569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35f92021bd0fb88c492e3b9bce1a8f1bd338ceab7a7f4205d3d0ac47ad9eed6. 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/DGA0L2366570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994158e08123d2c13c87f82877e0b46f4560bf2522ccc3f9e8284da053e9c690. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DGA0L2366571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68894a4ee191ec1907b8a7b1e4a6d6a8be6f05e97ab075b2379d18ff1a5eb807. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM24S2304659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7048b8eb1c289bbfb40ae7d3a95a15dcad30e01d1749fbd89a6e0ab7383366. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USLD91753713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0696b97c8e69e661f7e8a7d0c531444d2af72b54311aa38b276e9032a0b7197f. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:27:31Z), 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/QM6P41906609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab04e7c6687fba855fa34701780f401f551d1f0fb92e5dd3f652f84442fabad0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:22:36Z), 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/USLD91753721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5220aa7be721801040d435a52527424d4a78851d5b37e745fe5e5cb1c76245. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM24S2206210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5d4c18ebb6552e77cfaf382e60c4ea2e0766e35f6ff264c348bd5ab2682a8c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6N22231738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0cd88ea715fb0b6092c4c7a69723b9b6ec7df1355a040f81d47603b9d16df18. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM24S2400848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0cd88ea715fb0b6092c4c7a69723b9b6ec7df1355a040f81d47603b9d16df18. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM24S2400848.
Fishing For Accidents (Extended with Instrumentals)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01dc09a3997777b777d5332ebad6891854c23026047254e53151fcf4c2617897. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR2DK2200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00043742e6b0dc7528d26e20b657bf1fe4779dda60ba81b84e7554731df05187. 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/SE6QE2232960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00043742e6b0dc7528d26e20b657bf1fe4779dda60ba81b84e7554731df05187. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SE6QE2232960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c67f614cea433a7295128b8b7ee6e75c9703303273dfbe43b3904bbaf4c8f72. 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/GBMYF2300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4347c941cdedf472edd9778924199ccb25bb5077e256e68aa34e885c334961e. 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/USUYG1552127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04128a9505c32c14820f97d05042454280ec1f2e8f4c8c14e439b963c874484. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUYG1382534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd8efb478fcc6be98e165996d49ae207705a9a5cab824c02d888da2e0fe853e. 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/USLD91725409.
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 0x73569313297601dcab481ed96da1455dedd346cad496885979381fd0e625ed6a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USEP42136033.