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 0x7305cb247b32da15635a88923f8de572f7fd7bf39b3a8266b8e164318eca29e3. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80537c2c-d909-4dcf-97cd-6124135e3720.json and https://artists.proofprofile.net/proofs/artist/80537c2c-d909-4dcf-97cd-6124135e3720.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 0x97c38ce65cce2f60caec9f452427241aaf07c6af4e7ce51a8c0cb49627cecd43. 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/US83Z2134403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66bdcc7a5afc12aad71e2685ed13c14486e1e0bfaec8d9e9f174fa59e692a2d. 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/US83Z2474792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f649745ef246b3c4403627f060e5a7a2140b569b8fd9ff79fa8dc8bff181ca. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/US83Z2474793.
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 0x1998656659196e7109aea2071d996ba0fcf8bd3f3aacba59ac5fb66b0a61d209. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/US83Z2474794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf178e26af5d99f5e5b7eaec62d6c52ea49a34430570e6bf95d390cc9880c713. 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/US83Z2468821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f227eba0ef1dab2f94ad3b81015075637016368a861cdf6f2b05fe6d65bdc71. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/US83Z2468820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9867007bccabebbefbbc7331015b6d14133a0d608b95995ea9895911d8dc77d4. 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/AUXN22406165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccc77b162e2ebbc20e713fd019f6a00759f19003becc852d84bcf473f73a1aa. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/AUXN22406166.
Sunrise in a Cowboy Hat / Ellipsis / Small Hours
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ebd99e2728d1b91aef6499bd72afae80adc2fe7fedbb5142de7db148230dda. 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/US83Z2221417.
Sentimental Fool (Slipp. Center Mental Remix)
Sentimental Fool (Pole Folder Full Sentimental Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b538957156446be835932b4f12885baf6f9201e83455218c25b6776d48ce988. 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/AUXN22231986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512daa4c3a6ef7fd24967545891ec82166b6420e3ba42b32bf159a875f9b9ec9. 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/AUXN22210662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b1c63da903e964900266824891c433ad30ba13c33ad75f153541e3c53b7765. 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/AUXN22210663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68dde618bdc99d6ee8cc6b7358adb4c1f2b7deda9fab3c8b84f7f9c82d6346c. 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/AUXN22210665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fab38c01ace52640692ee225b763ee3b87dc6975151328b139b37da0d5fb87. 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/DEY032001642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544892c733b724c8bd49b1b29157059cf67a6c98596671698748a448ed460e83. 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/US83Z2015211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a1a4a1d9b05752aaed2975b5def90042619d58a7a04f8f1599ab0dc2aabf06. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/US83Z2015210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5807c9dfa83779b6326a687cb0e2bfb784e6f579ec5ab3a5ef2f81b19b9a8fd5. 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/DEY032001586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096f4dca0ae827895caec56627b03ecc5ffbe70261814945d2ed810b00e667b2. 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/US83Z1926295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd49ce85d24db19a6b2e5a6e40cc778810e4eb2d52f5da077786c72c86b36eea. 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/US83Z1817268.