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 0xe9c2fd59292c704a20c52f7d9240c4980b9e7c34d78442b479e68ee4dd05796b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3b91e9e1-8965-4e05-8ed3-118b3d2e1dcc.json and https://artists.proofprofile.net/proofs/artist/3b91e9e1-8965-4e05-8ed3-118b3d2e1dcc.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 0xedd50e74fc7c6ec0834bb544a44a2c3d9efd680cfd4b1814c37e6dad44ae8a38. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FR10S1912837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83727293925f8671f670bbdf1e107dc2b41bcbc9cb86600a687ab0d3d92037a5. 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/FR10S1912841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5caa0544b30cf3b963e129cc2d1ae3cd14864fcbfd7ebf42d492db1d7317d9de. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:52:49Z), 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/FR6V80911601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c4178683d2a2194ec76448a9e0767d38a1336ac11b2e9850e04deb26c1cdc3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR6V80911602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730055745588ed3f28214c7399ba4ce97b2599bf86106dd6a88a963c36551b80. 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/FR6V80911603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e9c1ebcdb693034c6f7c75c79ffe48f8691ac627ff381ddae90c5a5adb67a1. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/FR6V80911604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ccd6f97b08b76e8a2a206fd8bfb6451f1085996597eb63fc10f3cc682439ab. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:42:31Z), 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/FR6V80911605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5048a24fee9def6de8840f5be21dfe560c7dced8b976da150ead948cf87b630f. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:22:12Z), 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/FR6V80925618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349f30de076e64e77026fbebf43910bb8aa80cc077117048642baa6423893238. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/FR6V80925619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd7d3a28823b24eaa9f27b0d37ffb468678933e085bfcc42c0e1b365bedfd83. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:09:20Z), 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/FR6V80925620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfac18fa457adb16bd6f80ed76b8828b414ecd1fc5fd04eb5833f4fae5e6738. 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/FR6V80925623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250993ad61dc7c871f5106beb62081258887ac562654d552aaa9ace373f26103. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FR6V80925624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6a0c482df04c68bd7c48998ddd6ebcb280290d5e457a7d789863f657309cd3. 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/FR10S1913914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4373d1806469f4553121a038819ed35a4af2fa7790006645c1d17ec6b367007. 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/FR6V80585436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6b3e284d1bf6b66fd925bb209264f2efb81f7f7109d93a9c928a5d7375c684. Chain 2 (Bitcoin): anchored in block 957835 (2026-07-13T09:48:24Z), 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/FR6V80448748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f37e29212bbb7015425466a63f05ab5605c1c1571bce9a901f9b3d2e04e79a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR6V80448749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c9b3d79407c5619bdbec5c2c777e39238559f7af65f5ff351ef059cdd77cf8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR6V80448751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff702865da1b269490bcb3e653a44e8bba6554dad72ade24da4c0149c297e2a. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FR6V80448752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2cfed02386678d496f374953b8a1ed068fa509b8bc8807c7169672af16bdaf. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:18:05Z), 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/FR6V80448739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c23e02a8fd5c6c9cb8d34be18aa5e407817407bb5a1aada648eed30651d7d2. 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/FR6V80448740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6524ecc07352497a17c3c6c2cb727693e4e77155863735523be4d87cc03ce0d6. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FR6V80448742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e386d3bbd43cf3d7817f2278171a729fac3a1162b4407ee28d0feb8c8d80228. 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/FR6V80448743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4709008276e1c90787fed782b6ab47a78eef6fa7f8af042e586253a91babf9. 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/FR6V82090961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c94a0cc4d1c8a6a9d21ddecf1f762691dc48e39a8071bad65df18410d8415d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR6V82090962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5e7868613c12e104c9cc2e5df8347843e03d3f4feb30998865afd345f94e2f. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:19:02Z), 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/FR2X41436971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2345a340e9003f8964ec24a4b1121cb1d37a7f67e18dfcb3f61855e355dba9. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR59R1786778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f870c5a601e8fe10041b6c252107a8898bf767efc50eac181f5895bacdc3bee. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ITR631900234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879af716696971b90e5c6a49a509d553461fe242b28278fa0cb5e0a6b57fe4d8. 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/USCGH2329576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebd3a509a129b3e941456287b1789405877ffa4ddda67743df45ce80696a9e5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USCGH2391705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa99ce771e9f020b55f9613db728d8f92d691273b6f6116711e1438e4b474b4. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:51:34Z), 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/USY282320992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67637a0170538aefa9fca04387175723dc937398821e4fa7ad7673b72496eee. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ESA122457884.
Senti Come Batte Il Cuore (2024 Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf416e1dee97a19c82d7f27b108321fd8ad1cf0ed440e4013352aa876fcccad4a. 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/ESA012495528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07dbac9a9e5c5e5c3c216b31113ae4c6dabbfba97f7d4c2616bf2e4d4bebfad. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ESA012505870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3be6c2bd141677622e8d934e16b7ce1904d3c673cc6c55777ff2331fde07c23. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ESA012536695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb1a01714750b1f9c6e1549cd0dcd6e414e8eced7f1c655d7e5a9ec33673ff5. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ESA122500669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76058d04f8b3fa7dae1f8e3a16d88110d7cfacd0976938b7db1089678bbc14de. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ESA122527073.