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 0x3297f5d93fc3d491ab2d5eed5a4df71692812a9b8c3e726da000705883bb7678. 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/deb052d4-2bb2-4fd9-9ed5-8b602eb87621.json and https://artists.proofprofile.net/proofs/artist/deb052d4-2bb2-4fd9-9ed5-8b602eb87621.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 0xb94b9605700433f68ccf68dd4c4276171d5df235c06e76004e823d84dd4f4806. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:58:09Z), 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/QZ8NZ1700624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2671336393d1fc77c36c9127e55b4d8c7049c5525d10dab84a88b80509b521b. 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/USNRS2342856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cae3a9ab82982adcc3f096f1f88854390605b2d369a40cb4cefed23c00a0e32. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T23:31:39Z), 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/USNRS2342857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a3b73e947f087d90450658fc47226335c86d8be7131fcb33edfa19e9cc2f34. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USNRS2342852.
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 0xdc913b587ed3b94ddd7bf08d3aeda521e26a66647e5343f4de430bc6a0abec43. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USNRS2342858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0746cf637bbb42db51d248d3aee52d11f7a460e6c82067f6f8affb279e3058. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZ8NZ1700693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f09732b9303232f2f24b9052fe2c6f445cd4491f679f3125877300bf907e1b5. 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/QZ8NZ1700694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5687458ccbeef098bffcd8add7bab69c960c85b33dcfd36685b15459ee9a5eb2. 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/QZ8NZ1700695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2424767843fceec7c7bb43c871c69cbb3e96ecfc69f35fd28167d8f6529ec0. 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/GBKQU2505004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa772b3f1d2ba056ebcca9cc4f4a5b1d91a1f151176deb4b8d7d6b6b2f13762e0. 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/GBKQU2505005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8244f6d7454b0754e9ff5d97e137aa299467c634e08e9bca434f37f722a07b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:00:13Z), 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/GBKQU2505006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd855f36723d0e744a7b598435dacbe63023d28f16b8cfaae7440118da173ca05. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZ8NZ1700691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58580639f88f2deaeed05903d156caa985b258ba48c30ddc8f81256eed6b298. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZ8NZ1700690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456ad28fd76dacae6fc24d7054764ecd5873d251802fafbd763c0b0d191f0c45. 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/QZ8NZ1700662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae220a3c0820fd4bd5e514f761889e44225bc50f61a037bd4815c3406253df67. 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/QZ8NZ1700597.
Reap (What You Sow) [Doug Gomez Remixes]
Infinite Light (Doug Gomez Speed Of Light Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d20f64cf7d08c043272a2ff9399b74fd1806ee0be3ab3152855bce994793b7. 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/GBPKF2200093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b3c8e60c2f798ed7d20351dc223296e34b29e79ce2528af5f24e768b033ab4. 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/GBPKF2200095.
Ashewo Ara - Doug Gomez Merecumbe Soul Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622a07dee032c3e32a0a48ec380b53c6ca2d820457532686a41a119a3b4f03fb. 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/GBPKF2200097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33aba3ad32ee1e465b0c03df1386e49d56570725e7fd531b0c028c22cbb06a0. 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/USNRS2242170.