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 0x398eb0949aab69781e2d5280804dfccc6dbf7c718c5b7068aa78818c55796829. 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/5a2d9424-0713-474a-b15e-9b22f8b36474.json and https://artists.proofprofile.net/proofs/artist/5a2d9424-0713-474a-b15e-9b22f8b36474.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 0x6ee8cf1232f2bd5945ece145e77754b89e47193f3df5cdcc04a3e524708c6926. 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/NLE802400209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054fe0cdb03b65374c1bcd4379c5b4636bfcf0838275c031428fdded2389ce29. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLH2L2400152.
Gravity (Angerfist Remix) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f4d41e4a1172c9b1cb1393161f69b78b300c93e40b9849b684303339a97d36. 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/NLH2L2400153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d12fad981ba917c3ed2a488414b243a31c822a3dff7be33b6768f44e9ce6c45. 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/NLE802400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbb4c21ed253c17477ee4f6f1dad46536d3aeaf5ed4f4dd105e50a278c36db3. 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/NLE802300484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328a98e6f05b87ad6bb93b7f8a90cde59099e44e3f484f2cd9fa8e5d6b470cff. 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/NLE802300485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430b12923d2d43a28cc6c2eae33e7dfeb62e0d32ed9df043bc73634b9b631ec4. 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/NLS762200296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20038b2c7edb5ef80da12f522146b0fe6b76051ecc7726af5e83358d77f76a30. 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/NLE802200178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82436ab674083fa0a36513735792228b3eac23c8d5639b681f3067794ba9106. 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/NLE802100334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb291fd96de070c6c5f2cb14f9821ac9230cba619ef783629e5fac39610777d97. 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/NLE802100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f85c1e24d0f146e499f82881b0f03600a880eb887b83aad1254aaf7642a0c97. 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/NLE802100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04f8d708b868fa9f6d6a82cee79690c8788c013b0721e9d1d8b1703baf6a78e. 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/NLE802100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b2bd6a04a81ac3104cf06189d6655943c725702be18d09bc83044345b0b279. 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/NLH3Q1900451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01638625a86ff26cde930a9c1bb446185bf33c65752c27cd91958d4a2bdb26a4. 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/NLE801900624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd233bb727d4062324f563b2c59cfb0563327b8d029eef9e8a378375be0a4687e. 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/NLH2L1900136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c11297b9837384c169c82e479a93f826fef8406fd266c80a8ad9691150c797. 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/NLE801900261.
Gravity (Acoustic Cover by Hardstyle Pianist)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c901cdf1f4529e391d570b3d849d75fe15747c9977e9fe1359ae1f83f36abae. 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/NLE801800539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58867a03c8e0eb284dca2502065acecd6f25b204bed59a0dac57bf8a68402e40. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NLHY51800673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6266cc7f5f949852d7adab478fac6368d55572f335ac809c661a9790c7795f0f. 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/NLS761800142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12a36c88fdc874e7720d743e5c2b4ae71630c0619855b2e44d781f53903a348. 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/NLE801700429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05255b3197dd3457273aabb07e66cfd0707757ed56990f813903da1e4be4693c. 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/NLS761700333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbbf09e8f818a30228f36025bb1cdaa63271070746fe550c2acbb7553443054. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLS761700334.
The In-Between (Dreamfields 2017 Anthem)
The In-Between - Dreamfields 2017 Anthem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08db86b4c41f8078f81af68963ad47d09c5655f4e8d95c31131e04250128d34. 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/NLS761700256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d77861fa94bd9af0ec7474193cfa56f7362729f945b1ab4534e6bb658aca46. 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/NLH2L1700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f5432ed0cf51e535a8a0ec29e9a26b03f0e8ffb540d713cc4d775561050255. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLH2L1600128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58867a03c8e0eb284dca2502065acecd6f25b204bed59a0dac57bf8a68402e40. 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/NLHY51800673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb155c236e80f3fc266b23e74477cac413e4754ad24ac710b70f6daeec9bbe5fd. 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/NLE802200268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82436ab674083fa0a36513735792228b3eac23c8d5639b681f3067794ba9106. 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/NLE802100334.