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 0x86eff47214b3c17a20423554dbb6acb3d6e184a115bada7fdecacaf8077f5a43. 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/8fabbb8d-d29b-4830-b11a-04f136dbf7ae.json and https://artists.proofprofile.net/proofs/artist/8fabbb8d-d29b-4830-b11a-04f136dbf7ae.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 0x503f5757166f3a8f81199270f065cb6b608ac1ef0aa9c08ca7103bec9208c66e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/USLGZ1900063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54a299ea666465444b91867a9969d4606bb9171e0d175fc4eeeb3bd979fd6f2. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USLGZ1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670ab5190a5e609635ed385a67e53e38068103726c7f4a7a171ae1c0f1d5f79a. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/AUVWE1900664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299c43fc5c5cf952ecf8edbda3c1b5f6003b05c43c90359d4cd1dcd4bfde2e4b. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/AUVWE2000690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837f9ee2d1f7ed14aaaaefe3c49fa51fd7a94a67503ce3c32589855cfd1b9716. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/AUVWE2100875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837f9ee2d1f7ed14aaaaefe3c49fa51fd7a94a67503ce3c32589855cfd1b9716. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/AUVWE2100875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aeaa237fa6126509c52a43783c3e8bf7c08805d838905017c7476bd1ffade84. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUVWE2100910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea097811c0d5ecadfd3c88ac60d877140223d79748f5910de97934da702cd688. 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/USUYG1391910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931eded34c83d51484ca40596619b7dd43f72865be2cf70ad9997816e5a58237. 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/AUVWE2200949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8d580f52ede383d92c5b4be07c37c39a55da7c02899f0f9954bcf35b5f3ee3. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/AUWA02201697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f0d4b9f9325688a38ee926356b57eb6eba4dcf952ab03f22c52954e8e242cb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/AUWA02300370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1651f7d957d16cf730901c6c2033dbfa31b15d01b490c16f6a7b833c39799bfe. 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/AUWA02300678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa3be621ae30adbaaad7b0b30ef479d72eb053bee1a948c26cfb008161d639b. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/AUWA02300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4240098fffa6ab869e0e7bd17ddfbd4e8dd3378ac3536a00471ccdb550d7ab2. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/AUWA02301029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf16ad59497fc1170e118316bd09229a5d5e382a8796fdd8b5b673ca42b0086. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/AUGBT2473762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8fa0076a69e7dddba7ddaaf39cdefc2ccbe1b1672434b0d598b771284d4f60. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/AUMEV2514570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ee7ce695e32fd63735e84be6f5ac9b086a100599c6ecaf96b5a7e25dbab470. 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/QT4K52504051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0d1a8a781775a621606d12aae2dddd2c4cceebfbac2dcde43d84cb23343ca8. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QT4K42511594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f8a02d68cb70520862e200966ed79125098f19efb0d50352b03a0029821d23. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/AUGBT2543384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b3a79cdb971646db1fbda46f5bff9829afc60341c8278843bf6511ea5f9399. 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/QZ9Y21727958.
Ice (feat. Stevan) - Peaking Lights Icey Sunrise Sunset Spacemix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde272c0dafe79ca27e6022e6ce7d490047ba7ae27d47d45124e3d57c2f5baba1. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/AUBM02100188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf30d9dc518d39d3c545b6239998901171e42e576fa375a780f8bd8a164b2cb. 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/AUAB02301434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf30d9dc518d39d3c545b6239998901171e42e576fa375a780f8bd8a164b2cb. 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/AUAB02301434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9890e92b6661a1a3c5cd31d02d89fd1cdae84f2733eea95887753900109c7c1. 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/AUWA02100373.