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 0x9c6a14a4fdf99d522c32aa1fde329b594bb1dd464e7c261d9fc270d34ed14949. 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/5b366689-e286-4719-9359-2f56c8bc19e8.json and https://artists.proofprofile.net/proofs/artist/5b366689-e286-4719-9359-2f56c8bc19e8.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 0x8ef0fb59fc0ee09f66b008526f8201473583f721d6169691846e252fd60011f0. 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/GBKPL1806403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51d41622b6f3eb4a02a2dc2f0af08c7ded2ab9c581dccb9fd9f4fc30a89799b. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/GBKPL1829782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f72ba599b852d397414b4ff16816e99d1485054c0e1539c15fb1e59d79be3bb. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/GBKPL1829783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf5459d80d2846e6844a40aac65e36e5df4a2d0d9fff2967129453e185f0ef7. 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/QZFYX1990209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f37f03c1451f7d85c9129147fbb5bce09c073323f2fc523950088599dcc398a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZKDK2088404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797effcfd5919cadb15f79d9d7d299a95ecce505915b659e8ecc561ff4bfcc7d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZKDK2076248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715faf119e3fa29c248a3472829991573eb35ec853dcc3d6690c50474f7c1f57. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZKDK2054635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9035e7f80ea6603b5eae66dd098cf1d30bd071328634d35cd0bd5ebe48f444f5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZKDK2047503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd475b6ea5ca9cad78c2dac23bb3b1ff4c8bebf2c413dc35cba6765267022bb1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZKDK2079715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509413073649b9250f2158ed222f3b300b8524b56f6091784e82f78c66657d82. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZMHK2084727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943b2befff75690dafc7da3258586843cd3707af49a5f4150e69a01d52fb439d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/CA5KR2157943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1100fa5312039e1df1225f6d16f5bd293347734d9cbfdb39fc32a7336bbe73. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CA5KR2157944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada92f0a840db8eb190f3ec3f2927215aa31b347c5a20a52e37cd6235d454a3a. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/ZZOPM2109144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0af44e4ccc953203f352ceb212f7b2bef76685f40b16d2e2c346d5e58819530. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZTGW2100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c35c1780f9fadaa8dcf138360f55fe26b0901a604089d7edd26d8baa0126e8. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZZFX2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02cb334b264fd6155483d572d122d771d83b34e2b32c6b62c25889a71b5ad8e2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBKQU2574006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5409455cb287fd1b2a2cc8befb666623e0ee2428fb99dad7777dd7ad82f00b6. 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/USRC12201985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecf4c4ccbfb899ef5ba2d5dc344c91b1665e239104f78b8b2d53bb3ba9b37e5. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/AUFF02100220.
Price Tags (feat. Anderson .Paak) - kryptogram Remix
Price Tags (feat. Anderson .Paak) [kryptogram Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b34d07ddacf8172c5a01841ffb0995dc4fedd4d9c061346459edea0afd6f1f5. 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/USRC12100947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bea97b457c1d9479abc9fe34d332f5b131085d22a24995c97070ce8870c680b. 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/USAT22007354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0bbceaeed9df9feaceac82acb221e3f36ac67f227de71ad5ed446cebe5abc6e. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZFZ32162741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed31ceee01780c358b316745c1b1bb49414d7057d16ee2a65e8338dfe6433f87. 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/FRU702000292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb63d634d7f7216bc0f241cc08369a7e32a3bb8d76163efae3b0c023b14e9247. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/FRU701900308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf59fed0e53d40ce0f09c4ba1add1533f3001bd4bd136509127a16cba88466bb. 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/GBKQU1478011.