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 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 0x9fa2e7159308ff0036e94b428340adbb35da5dc7c42e7e1591903f6d5f754fde. 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/ea08700b-4848-42a7-a9c0-7a621ed747a1.json and https://artists.proofprofile.net/proofs/artist/ea08700b-4848-42a7-a9c0-7a621ed747a1.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 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 0x9c923586041790b2856e33597e24ee55c152cb008615ddfbb08b66a4640d0fe8. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/BBA011401571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aece34528bc5b85e5636741a1418f8472a7ad20f801620bbcedefc2dde49435. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BBA011401573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e18717ab5ed57976b065596c7507c5e7fb78b9c2745e307316c13281a5c89b. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/BBA011401575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6def58d5f00d5a92f7d5ebb2bdef9421eb66314c2975387e06285220726d3b0. 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/US7VG2034590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed16033bfefef296eb336f4e288bd4a68ba20f5368d7009c1cf0822bf50471c0. 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/FR4EO1500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9e8029fed58521bf09812e67bfe9c8fbce92053ed44ef5cfb53b07598fc7d2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FR4EO1500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc0d74a565d97a0a1d441b7c0234ddea962efac3ab039463f56b1792a1f1afa. 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/FR4EO1500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d00b896d32c8da5b5b9aa1218fefc0ec05a4c0901ce35c79c9d5871f18521c. 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/FR4EO1500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ada0d3ccfa77c025151841d9c3db852ee167aa7bd956fe4d8583aea7e342e7. 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/FR4EO1500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7556fe28d79daad0b6bdb1370231c918577c8b26c9ed4223c6813943fa9910c7. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FR4EO1500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655bec442937c052c4f7a7689db55f083981865353f2f78e7a3b96da6e45cf84. 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/FR4EO1500019.
Psychemagik Presents: Magik Sunset, Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254aec9ec5e3867ff2bc95123a0cf12f4ee6703779907d1a3109ed04befdd6c1. 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/GB7RM1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabcdc273f147e3eace7224f750243f655ad2a04f2c1af5a793407c6b30ccc1b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB7RM1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ef3a6769d39922cc6b23faba3a2061b80d407414d26d0d2e52fd9875bf1935. 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/GB7RM1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2afdb92b33e12a4c156cfba7e7e329dc00695ca302b5024ba280f2c6e04a24. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/GB7RM1500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ad46977aee2382362973ff2219c1a7e4ab72d3b4144053bfd0f68fc1830e0d. 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/GB7RM1500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c060bc33a6f4d6b94d43ce7e041be8d06ecad5625eff219efae7e0438065c2. 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/GB7RM1500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d2e1ca76a1d4ac6873fd7138030d119809bbda0db9747ef81828b9faa5a2e4. 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/GB7RM1500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf773a44577853f02751b2b2d147b2cf84841d5e6462b71f2ce441404cee2e8. 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/GB7RM1500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e4b7df100407133a7079c0b725b24c686af780e757493c79cd06791db3144e. 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/GB7RM1500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4d7b762a4cbd611149265af831fde9db04c9169ca98efa6a13e40b7b1149fd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GB7RM1500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f9bca5aab3cf00883db41bd5f7971390428030f0d5bd37e0f92a5c643cc5b7. 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/GB7RM1500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed16033bfefef296eb336f4e288bd4a68ba20f5368d7009c1cf0822bf50471c0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FR4EO1500010.
New York State of Mind (Pepper Brothers Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0120d1c8224da6056f37cfab21dccea8b09a9314c72d19c6c51c3b4d8e57da. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR4EO1500067.