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 0x1261be35d718dd4bb4530d2671c75e4029b4ac3ba9e44c606bf1c034df4ec7af. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5dda64c-b316-472a-af59-5d57d07bc5b3.json and https://artists.proofprofile.net/proofs/artist/d5dda64c-b316-472a-af59-5d57d07bc5b3.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 0xbde31cb3c5d0a04f091c694f7fa8a4fcfc592ae64fa5bb6b5f08ade90e6f9b75. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/NLCK41031421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f342674ff8cf7f7d58517cf8ab1239b86f0a10c1f7d35afc742ac91d6f0bd5. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/NLCK41038285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6efa75d86803fef6be58fea17bf8407160b8fab994d7bf9d73ef71b7890f2d5. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/NLCK41042700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782cdc10f571c662b3a5e0951146e07591758089ef9b73edb73677e9adaa6933. 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/NLCK41042703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6901efcb089f8a18c3365e7cf17879f691be5c66df436b6b4dd25dd0936297db. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/NLCK41042707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9154a26a585b4bd94a2d1208821bc20a0e12e993ac6f585a48037d6d232c3af. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:54:01Z), 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/NLCK41045380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1e642c4fe8bba031bb2ed86d983211d37c83f495b1335720b8084a259440a2. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:35:53Z), 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/NLCK41062488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79acfdc7623fb1d8313f36fa128f54a4665edd29e333dc3d1f908cc94989aedc. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:57:46Z), 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/NLCK41068442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3820f52a62197ead49c08c3b1c5ee3d292e26ecb084df74d8f4438954e227e3c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:02:55Z), 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/NLCK41070032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c7c84a40846ff70c97a60955d1ec54ee73b4ea724b8b97c46eecfc969a0dd5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/NLCK41070033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b83995423375b9ffca4b79aad850d8ae45f0d2926b3c6128cdf09e899d6797f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLCK41080253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c2bbef59982da12251808265dc6d596e06d27f4e185aac08dfcd9a68e21a03. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:09:13Z), 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/NLCK41089182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc7c00137f5483d4c731342959461a5130b6049e230127027b591ca23379d7d. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/NLCK42213467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab0579c9048ed2c96fbcb3808b26c759daedc2061b66877540738bcb6a72f23. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T09:59:56Z), 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/NLCK42213472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fc4bdb2066b00dbdd0997fb38b76aded9db3319df6b68a1f026a35a6e7ffce. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:55:05Z), 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/NLM792200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fe1c00f4380c261937de037600d63fe71cce05434a5130856699b596bb75f9. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:05:12Z), 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/NLM792300207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0022f5cc6319dddde7afab0951e06aec4358516fc7824ab67fcb511b647ba28. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/NLM792300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a462669806896ebe7d7d1ef2714b862bfd37992b64180bbedb7530b0cf8b6b. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/NLM792400071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66ab6fc5ab140b7a1b6681ace983caafb6bc71aedb98d7984af84a2840c57af. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:57:44Z), 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/NLM792400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e67bce238086192621c760a2e7879a461f3e5ee02ea44f24ee2ba4f0c82837. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NLM792400074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7375aa1e9297b54d3cd625b90a7f24f8a2e93b90423bc39f6a6bc87d363bf7d. 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/NLCK42420026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1362a28b80e75804fa8cb1f0fb6763e5c098c6128b4c059aaee7d9033e33a457. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/NLCK42420027.
Ellen Allien Presents We Are Not Alone, Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28ca3aeef7aa3ccb11532d4492c06162650947f11510dc16246427575103178. 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/DEAE62000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffe4e3658c846d5cf2eeb52a8d8d018c8155c8c7fdbde09bbc17511fa5f2223. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/DEKB71451727.
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