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 0x97be851f1242646e7f00ae010cc719998b9ab2033a8886c86deed4362102cb9a. 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/919905bd-c0a5-42fd-ae36-73acddcef21b.json and https://artists.proofprofile.net/proofs/artist/919905bd-c0a5-42fd-ae36-73acddcef21b.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 0x3718741770528e373d0d795999d8537601b7696038779785fd8825e55592f1fa. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/NLRD52340525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a212c690ca8f3bb862ef9791f94cd74c604d310d312c12321bf781b9f3a7c7. 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/NLRD52340549.
Right Here Waiting - Acoustic Covers Versions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ef49c38bb0ebd7b12276a4b069da548d258819f2a313ae5d24e714270fe0e3. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NLRD52340526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d641ba01edee0ece957350fea173f7c8b54aafad599102eea24dccd1815ae2. 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/NLRD52340527.
Would I Lie To You - Acoustic Covers Versions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8497802628db490abe9d2c80b7e9ef10cdcf35cc0f02a3365c0c62abbd19b341. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NLRD52340556.
Heaven Is A Place On Earth - Acoustic Covers Versions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63eb25acec6314d5a04a95554f96ce21860cb22cd477985e9a69d0f09693543. 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/NLRD52340528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c743766c3670e19496c75b88a3c85d78781724dead4a0398917f421e3acf488. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/NLRD52340529.
Another Day In Paradise - Acoustic Covers Versions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f7e23450cbb52b655349cbd86e7e60380842cc676cbb491e40a4b5a34f916d. 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/NLRD52340530.
Don't Look Back In Anger - Acoustic Covers Versions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc93509f2f9f20ae4636a440d0367d5f808fb6ef54950d05c07b17680bfad19. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NLRD52340531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d72dd4d9ee3f760b890fadaabaf0e4331cf1f77e937e72086399ac0afb7071d. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/NLRD52340532.
It Must Have Been Love - Acoustic Covers Versions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0360c6afaca3ab367af0547bfb60478ca936df57304ed8c4c961dd0cc7bb55. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/NLRD52340533.
Girls Just Wanna Have Fun - Acoustic Covers Versions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e61fc1b7359b506f8dd6e433f0a8e171163076812735da31fc0c23a6d9ca688. 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/NLRD52340534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71a06ec4d3efb832ed2d04c470c4f9338eadc0765b3f8ac0cc4e4aa5d918c8e. 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/NLRD52340535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539f13b15c5f1272df22f16d4a0ea43223ce35cbbfc9c1d1b1e5f27dfdf34377. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/NLRD52340536.
Listen To Your Heart - Acoustic Covers Versions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484700c939e1d016a5438b6e257e7282e2bdbb4a1deeb74840e397c96ab40b83. 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/NLRD52340539.
All The Small Things - Acoustic Covers Versions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e5862671c747adb56347dab3b81b615d71c58272d730f3bca3b12000fe9c0c. 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/NLRD52340540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7540150981d12c15f52c7f59dfef84832d3ac4f4cfc34da464e0e37e60c5e50. 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/NLRD52340541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5459413b2270bd8ccebccfcb0e1e74ad4000e96c54c45cca4d95e3be89b22b8. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/NLRD52340542.
Bitter Sweet Symphony - Acoustic Covers Versions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12ec257cfb40cbbe43ec5f3d2f866ca3c1bf552edf4065052a82b6e6f3a6be7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/NLRD52340544.
Knockin On Heaven's - Acoustic Covers Versions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99637f36009e627ba853fe9f28812908503edf344ef3d6145af05b02bb4150f. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:29:42Z), 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/NLRD52340545.
La Isla Bonita - Acoustic Covers Versions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d9163736df109f95c6492083f75a37d00244ac680ef0e7ded302438d96b37a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NLRD52340546.
Like A Prayer - Acoustic Covers Versions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9b41d662a4f9fd1fdade4b04c5a9f77ca12b8a94d5ebbf44dad4762a8c5b55. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/NLRD52340547.
Moonlight Shadow - Acoustic Covers Versions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf23b87262d85e9039550e343f7d503ed1c486d7b1cf72e1bb59757e7bc85a1. 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/NLRD52340548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd708bc0152d104ffdbc3e18623b66e6e226f2aac44dee8abc3cac4bfc15ddf60. 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/NLRD52340550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82c09624e6463a34ee78ece0d721b196c7e0d5be474190846350729828c022b. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/NLRD52340553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef7855b4a3553466686ebe769f69783d608e5b1b4982e34c6c00930dac4681a. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:54:25Z), 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/NLRD52340554.
Video Killed The Radio Star - Acoustic Covers Versions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521df9b724c56ad11d18467c03942e7617ffe257f66b484a514855d1abda21be. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:04:49Z), 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/NLRD52340555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16d7389fadd7f9ab621ea46c4e7177b162dc933c50be56641aab3165dc03266. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/NLRD52340557.