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 0x13cfbc5d53b97e1747e1c756fab1396a6b9f23af51b1ea1a4bf2edabbcca6559. Chain 2 (Bitcoin): anchored in block 953924 (2026-06-16T09:52:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d6d2507-a4a3-4910-97fe-fdd2a9f17dab.json and https://artists.proofprofile.net/proofs/artist/1d6d2507-a4a3-4910-97fe-fdd2a9f17dab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Always There: 1981-2021 (40 Years & Still Groovin')
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 0xe74828a757beeebb99cca2bcacfd94384f96d0cc1074af0ba5b3f14a328aedb4. 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/USWWW0134753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a47fd9e23a14a52841f88b4df7a6ae16a60391eae8c0372a93ee79415b3eb5. 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/GBUM72104587.
Givin' It Up - Roger Sanchez Uplifting Edit / Extended
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af6614406cf9e06b6ca446c8131ce1d984295fe80f7052c5fe5575a111195be. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBUM72105305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fa111e850c6cf9da4d882a3fca5eb625b7af91b3d05c95a5483843e8aefb07. 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/GBF089601359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954eff5488220aa730b7e01d1ee216a34cd686529618b061a67502cfece3e712. 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/GBF080201451.
That's The Way Of The World - Short Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f17699d3ec3b2833d68910e961cf2fbd7f29c7f3ef50461add3fb92de4da0e. 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/GBHEA0600029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f0b12166025c9730666a9e8b67efaa8d862e6f683e9cd07ddce487dc3ce0d0. 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/GBUM72104874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0382b4dbbfefa824208362378ca72f14148f7f897e7c00de36d731041b4f4428. 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/QMRSZ1401256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6301c04813f5fb682a3d3ad0a0aea87af7a562b66ca557515e6fab70b3080de9. 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/GMBA21461245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7c3334e46836e39960237e978bd6eabfe54b40563778c5064bdddc4e406b80. 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/GBNYT1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4122b77c2d546ed22122eee1dc28680f690fdc964dd1cfb1315e0d2ae0cad1de. 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/GBF089601323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98f45e609d6ac13abb0ef265d9e1bf6ffa64adcb58d3a6464aac212a341b785. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:57:08Z), 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/GBF089601325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc29694998671094a588fa30aaaea7b52b5662b2304c7c9e8247f57c9765913e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBF089607634.
Compliments on Your Kiss (feat. Red Dragon, Brian Gold & Tony Gold)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6cd8cdc94b497ea01e7d4d876152e415c74ee5f8c497c95f8183b60aaf1a82b. 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/JMA191200033.
Present The Taxi Gang - Hail Up The Taxi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d550a9f7c8b5007e5a677e23d1070a40c5d0075fda1ea5d09fa191665007094. 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/USIR29500123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf023238f79a562b376e27858051fa01515a30fee078fdd0b5a0092a7509985d7. 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/GBFPD1900245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d204abef0f6cb85dae0aaff51ce57142b6112e0a7740c56a45125289fc8b66b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBFPD0300076.