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 0x0e7a749c4bcc6fc8c0606016f29880aeb7fc0130df070b2a2f2ee6dedca3b91b. 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/81d8df35-ea33-4b88-bb81-f543854c2040.json and https://artists.proofprofile.net/proofs/artist/81d8df35-ea33-4b88-bb81-f543854c2040.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 0x21769b93f20961e85f1fefa30ecb71d0528d825a162e937b091c8e6b20c23ebd. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QM24S2205198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f95a6968a0e4d2d1f2b3d31a9eb9d68c2bfa3e8bf063ecbcbca8b27ccd2afa. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/TCAGW2392701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9560e11001420403182188a2e1547882ad59dc8223f2fa5888dfbcbf5f3234. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/TCAHK2310826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6409b81be04a156531bda584ff6eb34f1a21a59eca90c1521f87f6e974555abe. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/TCAGO2239253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eed96cdb756c947667cbe369a53e200dc3f2327b03b9b4d44c401b72d5d5913. 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/TCAHK2310887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfdc20d19ec1bc73e7d68bf94c34dc00944463b55c33a75951e59cc895a86f0. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCAHK2310905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb23a71ab452ad2b997249cd7a12453f8976b0e1d0dd68d34b7e330595a110d6. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/TCAHG2371127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ed11e74d6fc3e101368f37774adf8a4f12749de4e4d6be180831a1a09919ea. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCAHU2461373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8666f6b5d04f8103ec661be1acbdd2175fa1681d6af0190c47642c072d56f01. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCAHU2461376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d048a1f15fd47742eaebe4caa549592c82b25f0b1516234338b9b6ef6368522. 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/TCAHU2461380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e56871808b13cca4f9ce7ff43092fec73eeaf70b5ae068f0cd94f9fa42f36f. 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/TCAHU2461386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471d60dde35f3249bf4d42af2ff3ac973644c3017739a348f1fa214ed1dc4a30. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/TCAHU2461392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb678d57aadfb92bd9fbacf3917490d99f44b402a17c4656c1ef9498ba96b3b3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAHU2461408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386d9bc703327e016c62ae6e914a4d91909186c3210dd67df0429193c90d03ee. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/TCAHU2461420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0abbaff115ecc4ec512fe793f5d3219ce12099bbd7c261781c5657b97811daa. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCAIJ2481846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f039d728949adf0b109a40dbd3f4390ec3fdfd98ec6117e519e5ae6d60c492a. 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/TCAIQ2454334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6534b49337dbe6a95ee07881399d60713cd7ae41241e746b43b83665f9c028f3. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAIM2466326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f039d728949adf0b109a40dbd3f4390ec3fdfd98ec6117e519e5ae6d60c492a. 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/TCAIQ2454334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0abbaff115ecc4ec512fe793f5d3219ce12099bbd7c261781c5657b97811daa. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAIJ2481846.
Wait for a Dream (feat. Baerd) - Heard Right Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6ac281cfda57667a0b953974f72c6e148cb0bff33a831de4ea4a7dd7a72845. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QMDA62151189.