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 0x768a8f9ee515159de3d4d4980fd387b3a2ec0c8d7c701a88958be9c6426c8a13. Chain 2 (Bitcoin): anchored in block 953896 (2026-06-16T06:05:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0fb237a8-3317-4541-8b28-5a657d3adff4.json and https://artists.proofprofile.net/proofs/artist/0fb237a8-3317-4541-8b28-5a657d3adff4.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 0xa2b506da4e3897309480b9dfd9880d11ae66ecbcb481d0b36d6ad60cf9e173cb. 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/TCAEQ2055334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676c667517d35bbfbea31ac743122bad604be39101f5b4f673c20ce710b92edd. 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/DEZC62370684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41333f78194d957b5542ba8ea0b521df00b8110e88ff74533540a764f7eefaf6. 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/DEZC62342352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4047b1b41cdf524916045e76e06cd4354c4dbb173d70f0132c48d42df57a93d. 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/DEZC62353466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87023e64f85c9e9f84aa78b1bca3a98894a7ddff286f4da475f4a98616c0a13b. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/DEZC62370686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124d6ef9197cd09631c3852ea9323648730bc56e86ea0f832790cc8de03b3f17. 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/QMEU31812203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedabf21ed2e5d0bdc1a0f2152ebe00ea711eed7302cf9d74ac34d7f4a9d49a9c. 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/GBNYT1800002.
He's a Hurricane - Extended Boogie Back Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddc633d69bcd26b52656baa3407853df8ae543398fcf30f910772bc2dcf2372. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/GBNYT1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb358b2543bf45d1ac7e14d6fddb1dbabf6decec8cb9df6216bc597af70818bb7. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBPZB1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16370bdfb14cce562707b8084e2abf44b7df3d1d44be1602d01c147a66abf01d. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USRC18208006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cc803a086e0531d2354ff11341b73cfcda4bd9b42f992d17090159142b327c. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/GBNYT8900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fafd17be8e432867fe12b28eb1189e97863c328b1a5267700bacb072cae112. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBNYT0600027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c9c707cba0464cfbba13f4756a1990d2a2e0d3638cf8a44b39e46078af0c64. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZDA61862740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304677c052d7088da1a72091896302b1e36de34b83b5ebe61095290f03cd10cb. 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/GBX332815015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95ba8e3db1768fc94b158bcd006c549acf03e70759e771ce48e0b869654dcb0. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/UKE2C3300333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ac2735af12d36e58ea419aab367a7913e7a417886f38b830677eca13f8b3df. 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/CH6541875441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9881af00e23e1ee31ed99198887e459997e1a8d5a2dc6164472c5c2c50cd5638. 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/CH6541875443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015c1996321e4b7a8fc9e8e1609ec63eb35a7f6f97a30638ca582623723575ff. 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/CH6541875444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2c38da21c53cb7886c13f0bc1ba66d0f6efdaaa63e25857ff40f5653675c95. 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/CH6541875446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4862cf2a45e87d83a58fb4989ebe8c19ccc3232104f8945f07143b600464a99. 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/CH6541875451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86041462ebc77b805ead6f8ebbb757c1bd9be886bcc914f6207714a35b3dcfce. 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/CH6541875452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01dde3b3ab7626f85c45f205ca22d89de0d4eeeb8796bd1a80ecd800103f146. 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/CH6541875454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4047b1b41cdf524916045e76e06cd4354c4dbb173d70f0132c48d42df57a93d. 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/DEZC62353466.