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 0x35f278dac07252a2d17f9d0c652a998cb4b86ea163aaaba58fe2e54a02fdddba. 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/a4620261-cdcf-4573-835b-7c7ee91e6e1c.json and https://artists.proofprofile.net/proofs/artist/a4620261-cdcf-4573-835b-7c7ee91e6e1c.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 0xb53d8edd19f2e968391c3cc113a0fae0dc96edd173469b9c0f589114fe888be0. 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/QZDA51897166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b8d1f3fa040e832b9bf66f83587f09a181ad759e9d0a200fc5f1f0abb2b2e5. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZDA51897167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc646bf40530c39b4890e1806c535ad88fbdeb683f77dcd31859288cd1092d6ac. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZFZ22054397.
Broken Hearts Make Villains (Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3ea05ea0fb9e6ca92315a950a8a6222bd6d97ade382505a0290f1c97c2e81d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZRP42142502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c3b5bf04a3a77fefdf317793b67c5c0ab5046959e1a8a8e58b4c3e5151bcf7. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:16:40Z), 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/QZRP42142503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b028dec538739ecb8fd28e519ee7d77a93f952dbf9094f341ae853219944c6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZRP42142505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66aebbb053181bf3fe3b9ac2fa67a693af343f01e95b17b5aca709748cb24162. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZRP42142506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345e35fdc0679e7b09ab44de15b7426bf78d1e89319b9f354922ab2224ca83fe. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZRP42142510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38abd27a40b5e6fddb08f80f10583feb46c2902524e57390598f88ca4902a59. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:42:09Z), 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/QZRP42142512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4e7e4f0b1ccb2c54bb3ea1b5ad5b3f20e2ddc4224c295442d736f3c2779191. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZRP42142514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36149aaffb1982aacf5e568bec0b38edc7afebfaaf71d0c92fb8ca812c175011. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZHN32228657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdf04026f58828b01253a196310d55ce9f980448e30bcefb69850865f925045. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:53:42Z), 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/QZES72301041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde71bc5eb1d560234fb08e70cbffa3eb826b332bd5c953df5ecf9f7570438460. 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/QZES72301047.
This is not music (Instrumentals) [instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8699fe1e8f214e7f0929dc27b8ed57a85b2b8d8b849d177f729fe4b7b4b87da. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWFP2316929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ab8f5078116b2458691d06811062b32e3ea2ff865d0dec5a509d26429bc29f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:49:56Z), 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/QZWFP2316930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58e8990c7ce1d5e0bfe858abcbdd7924f4054f60ec57cfdc864abc9d9227ec2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZWFP2395816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0d9d62c64e480cd431548e92d23071d37f593dd2f6e8b36fdcfd4eb6dbc3ab. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZES92491846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707dc3506fc5f491458ed627439effd31825dcdffd4ed70e612c599f06feffca. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZHN52406501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c01ca5f6ba38ebd591b881b0549ed30d187c594e8e0d7e22450499cbb57777. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTB92447076.
Don't Worry, I'll Get You There Safe (Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49275477e0d03c2b641b56f2c4c8487322f76defd73c791161cac2ab5285f717. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZVEM1866050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1b17442587d971ba333557927c9e9e2724a77861e60c26421ecbd4756c62b5. 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/QZVEM1866051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3478443a72c81a94d625f72431b6fcc0b068bc28deecfce57e9d2f7736e5f2b2. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:35:40Z), 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/QZVEM1866053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e3dbf195ee4e89ffeed39bedbf0f09a77f9b8af1785ede75f27ece01362a3b. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/QZVEM1866054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00d044e5f1a6454cb5c62f3e77030bca1d752289366b9c421bab8cd0513da18. 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/QZVEM1866061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccedcc66365051d442572de90976e4c6555cb1b7f2d3e0c904a690771631accc. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:48:30Z), 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/QZVEM1866064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a5f2443b1b3667c384fe04beae85094fcf3a01f7c0a6717b86ca8a6e367a01. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZVEM1866065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4600171c2753daa5d6a7d09edcd0bfaf6d8305596e9af3ec482c6b93b124f419. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/QZVEM1866066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5018b07e732671699a74b07c7e5aae00bf05011698138a2f029971d155bb9ca9. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:02:57Z), 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/QZVEM1866069.