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 0xdfa048c62d90ed45e84cd3f8d372803d9eb85b50223cfc635f981ac82a852a67. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33be2070-8c56-47a6-b537-7a4b9dd3cc43.json and https://artists.proofprofile.net/proofs/artist/33be2070-8c56-47a6-b537-7a4b9dd3cc43.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 0x03da2e3e0a572a8e0e9e832852f7a72be88cfc67238cc33f0804c403be45a973. 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/FRDX62400120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b88271194302242380a2a42eba4f515f6585367e722c8024a079f636aabe850. 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/GXA2U2300035.
Kandy - Sylvere's Lost In The Crowd Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132789f99ee03064ddad00668f5d7c0141d9d0b58eabc1bc2279d71ee434422e. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GXA2U2300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041d54e818dde7660941c6d30e58b6cd308395af1990b77e3ea1eaa9bab92194. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DEOE82300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fedc0599b4fd100faa96cdf55fe633a65c884be08445b9674acb6c85a31c160. 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/DEOE82300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde37cbc2d8687c32864ff4e97e03b4b9fccc24a5a0a1c3d120be685c3a67ceba. 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/DEOE82300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1344dac3368c5a06b7cbad2b94e4b56da820aa7f4878ddb822ec467f212dcc27. 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/DEOE82300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5870e1e62763594f7b064cb3ed7a2232e257888d14540cd716be701954ac10. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEOE82300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fedc0599b4fd100faa96cdf55fe633a65c884be08445b9674acb6c85a31c160. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEOE82300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3ceee4c354c0d033c380ee1a79aac45dd5e7b25cc198146c3651079f196099. 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/DEOE80400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a72618b6209912cbcc4329742549d26fd95892c17bfea3c47c04ccf1d3c15f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEOE80400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed666b7b4a499d4d42a360a620f2006c071921207805e0600f476a79bec4f8a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEOE80400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17ff9392705ebc8964b2e49c464dc85299fb38fcdd92dc00ab06dfc07bf5e03. 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/DEOE80400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b14746d623865d7399b56c163fc3f498e405513e758d60a436ca32bec937a8. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DEOE80400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f269dc42a112bf9ae44ff07a61ff83353e189a5d6326a7adea64ca86e4a16d9. 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/DEOE82100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46728f494c949afeee279ee0680e158ca82680b725685697443cd2280acb783a. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEOE82100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fda40fed7de3230354ff4366aabe2f89229744f462d1596a4be2dc373d2512. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEOE82100071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f97c4e89da27ef57e94e167bc9d2af8ab4e0cec8fe49f4847817232fdfc126. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEOE82100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3651eccb26b79284081bd5696aba89d044faee2404de3dbcbca79f34c789626. 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/DEOE82300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b03692f177701dd8f96f8b0e68352324fa4b771ccb235b08ab10f6bd016b9f. 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/DEOE82300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f060b336417c8dc73beefc105b8f8762be9a57d9204040edf09fb8359eae47. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEOE82300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83710d894308a9673e42fa4aa0895fc6a07f347bb2158e82699183026ae3b59f. 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/DEOE82300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88750cd7c2226b37c664392097b3ddfd33656fc3bf141f5d4a3901e6487106e3. 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/DEOE82300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d66ab0d90392bc90f0843165cb4f4932b4aa4058acb2be2b2b581298888a2bd. 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/DEOE82300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b897103c100aa90b620bf38705ffbd317e8b76c1c03c908580a070d73d7c156. 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/DEOE82300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32de927b52b4f6b8557eb8bea0b925c2969b46d9b9ea099efa0166bdc5dcb925. 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/DEOE82300012.
NEON RATS - SHERELLE's Sleepless in Philadelphia Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5413190f1dc8bfbaa0134a82214e020e3089af039a8158e2d7650e2bb7a934d. 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/DEOE82300013.
FAST LAND - The Bug's Kevin Richard Martin Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4338480c492e6711e38eeb498718f4d07a8399b880d551c1feb817931d3ef77f. 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/DEOE82300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fffe9eb2fdf92cfc605ea261d67802ec1d307dc72810052d4a2424364c89f85. 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/FRR642000226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2b2e5362cf1fa5add087a247ca4a64e04181d13bc707011054b8f13f5a1da8. 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/FRR642000227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc856d1f9ccb92c94f4c2ee914823ad6f4623593b03e32602519fe4bbf3700e55. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRR642000228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1efc81e5801f271ce4e4ba6d5e8d4ec4c0844a2c2fb2ec3b6af827b8d4f2d42. 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/FR9W11616017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46029a59f187f22d22d15026e5ad8ced1a93918e219020485b8409c33fa04dbc. 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/FRR642000200.