1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xdeb066f933a9f615a163e7425894676a0a973dbc4997a35730e9b3332c4ce256. 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/7e2496e9-3405-48df-9cd5-7893d0d5f9c3.json and https://artists.proofprofile.net/proofs/artist/7e2496e9-3405-48df-9cd5-7893d0d5f9c3.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 → block OTSBitcoinBlock must exist at that height 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 0xb4dc9c6a15c9e6fd9ce546807cbf940ee432444380e9c084b313bb3cd0d48d6c. 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/CH4132300228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8def88ce406da663a5ae99a8098ee423fcecfc953a3595381418717d135ec70a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CH4132300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44cb5f9e26f1ae562b23f789d1b1d930bd7cc668caa6b1f2df133fadf00b20e9. 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/CH4132300229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e04d582ae763692ad9c4245dd2d263ee221575148b5c8dc720bbf24cdc8824. 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/CH4132300231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276d9619d8f82e1cbf584846f926a0a88357c6a824246ba1f0dad0b90b4bca62. 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/CH4132300232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9802d0dbb552cd74e9fd3c86e779706973479bcc4a55655091a31e3d74ba70. 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/CH4132300233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f91d115b350a95a9b076dffc6e09b8f1a7957e7396c79c65f87eed473c76baa. 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/CH4132300234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48820435cdcf861b412f0882b75650aa520b76014239e15955d4093183d47257. 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/CH4132300235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c44063720a39ea8fc3ae7608ffc6731ef48c221e9022c2e9de4431dfe72961. 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/CH4132300236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b5aa7d408b87b91fd0fdd8c09745484da57ae7aebbc336bf1c263d573cd02e. 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/CH4132100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855061ec03aee78cc2b6c2b230ef306c6ad9537b48ec487f4376f927192d4d05. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CH4132100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93ceb40deab37f7b4f960090b893d883aa8a02f95c59af03727f76892c1fa5b. 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/CH4132100111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06fb594df6f8d9a86fa8c0989219ce554b9094e3eb425a2fe7e1077ce115a66f. 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/CH4132100112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0005f68f6035f0ed35a5634de227f1d78467fa9e7939941eddb8a4b44cc8a93b. 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/CH4132100113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc190c637c631f71b86b1ebd2a72567bfbe4882752131f4a8b78497a230580c26. 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/CH4132100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf675b1022368114b48ce21651fbbf70e877f639dd9696cbde529e04971cb768d. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/CH4132100115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384f58555d55dc4874f16e7db8411d0e59674383f0b92e5a202c5088a98cefb7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CH4132100116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95954283f98b5168fefb3bb385191441cc2d4d2bd2a8e25ae15ce96a5f6d7a3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CH4132500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0149ab2e3dd0a117e6d975b42f0e3a7022d6a00290ddf6e00e9710aaa40bc5f0. 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/CH4132300230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9802d0dbb552cd74e9fd3c86e779706973479bcc4a55655091a31e3d74ba70. 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/CH4132300233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8def88ce406da663a5ae99a8098ee423fcecfc953a3595381418717d135ec70a. 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/CH4132300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8def88ce406da663a5ae99a8098ee423fcecfc953a3595381418717d135ec70a. 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/CH4132300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6db8ac4595e8ed7c0a64980992a5d3b1f649f30161da260f6d84e22b80418ee. 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/CH4132200227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7d1ccd7c54059540e4a52837623cd690144281554de287890e9fb23dc446c9. 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/CH4132200220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7d1ccd7c54059540e4a52837623cd690144281554de287890e9fb23dc446c9. 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/CH4132200220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93ceb40deab37f7b4f960090b893d883aa8a02f95c59af03727f76892c1fa5b. 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/CH4132100111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc190c637c631f71b86b1ebd2a72567bfbe4882752131f4a8b78497a230580c26. 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/CH4132100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0005f68f6035f0ed35a5634de227f1d78467fa9e7939941eddb8a4b44cc8a93b. 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/CH4132100113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf675b1022368114b48ce21651fbbf70e877f639dd9696cbde529e04971cb768d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CH4132100115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855061ec03aee78cc2b6c2b230ef306c6ad9537b48ec487f4376f927192d4d05. 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/CH4132100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc190c637c631f71b86b1ebd2a72567bfbe4882752131f4a8b78497a230580c26. 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/CH4132100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855061ec03aee78cc2b6c2b230ef306c6ad9537b48ec487f4376f927192d4d05. 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/CH4132100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0005f68f6035f0ed35a5634de227f1d78467fa9e7939941eddb8a4b44cc8a93b. 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/CH4132100113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf675b1022368114b48ce21651fbbf70e877f639dd9696cbde529e04971cb768d. 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/CH4132100115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855061ec03aee78cc2b6c2b230ef306c6ad9537b48ec487f4376f927192d4d05. 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/CH4132100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855061ec03aee78cc2b6c2b230ef306c6ad9537b48ec487f4376f927192d4d05. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CH4132100110.