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 0xc16cabccaa380b1e3026f5e376f17d7ab15558c4fff1d1e1fd0d184c53a2afa3. 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/eef67767-2703-4b24-ab5e-4f9940fc8c4d.json and https://artists.proofprofile.net/proofs/artist/eef67767-2703-4b24-ab5e-4f9940fc8c4d.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 0x4484968c759b6df1483ea324bed2aacb74a050212ea2bce5d9f3870ff896f468. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/NLKD42002081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cabd9af25ff6f4748bc130605af4724035304672a0482f0e5e6acd0ab7ff8b1. 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/NLKD42002637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8ba595b08f2640a683eed5ae9f823cba0edee7c047310c839a8e1400406636. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/NLKD42003157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f3a193ce196d48a208d82d859f01a253aec04c9d721713ccb496a58fa7fa6d. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/NLKD42003160.
When I Was Your Man - Guitar Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a33d622b56d22affbbf7ac0c97a38c74fbd98c2f0801f39d947fc6d5625860. 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/NLKD42003162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15749ccbdae9f5121eec99732f6885980ef321f9454a4ebffa3fdedcfd3bc6d7. 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/NLKD42003547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86149b43a4c631fbada5c2de0e6afb243b8de9f3b3e13f432a9dba9431148896. 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/NLKD42003565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6a5c642c18219924ffcef88fbdd32f94f3bdf17b48d4f848b11e0d050f55a1. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/NLKD42004211.
Slow Dancing In A Burning Room (Guitar Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f3a193ce196d48a208d82d859f01a253aec04c9d721713ccb496a58fa7fa6d. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/NLKD42003160.
When You Love Someone - Guitar Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a22582f2ba692d44f12ff0bd871af895795f73a9f0244af1e7abf4330eea7b3. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:34:38Z), 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/NLKD42101752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a33d622b56d22affbbf7ac0c97a38c74fbd98c2f0801f39d947fc6d5625860. 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/NLKD42003162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e56efab5c8c20c169cdd1047bcb197bcfbfb4bf643938c72a054ce75d5dd995. 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/NLKD42003159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7feaa16f275bfd1b08cb9655cc16631e26a9d231bdec767738f3aae194a109. 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/NLKD42004215.
Instrumental Tribute To John Mayer (Guitar Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77d07f21fc089ffbf4dbaf6c156b3bc2d4b119e990772aea73f918a3cf1d8f4. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/NLKD42004133.
Love On The Weekend - Guitar Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5c61756746ec08a936c2b485667d1bf536a07c5947ef2e101696efb995d4a5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLKD42004134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0837c9450b9af8481b0c5c54be332048ca7a136e1bb7c89607b8091c487d7081. 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/NLKD42004136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5670a10d7a4b3f335692465c68abb4cb61da1448d849d96c1297091be9045e7. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:14:53Z), 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/NLKD42004132.
Queen Of California - Guitar Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98daa9ffd189490bdc28229f376706f542fb1061dc3d4abfc0fb5b9a99e6bc3. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NLKD42004137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78874d0b52979116bf94a6b602c410a98c336f73463d1d2b32629b04fe749dc5. 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/NLKD42004139.
Waiting On The World To Change - Guitar Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4193af6b133f321b6966b1dc88e01b705c962d20cf538ee979ecb4e8662fb011. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/NLKD42004138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47d8f300d707988122f385eddb1ff9c910543cb6befcd54144d4042f2eb3934. 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/NLKD42004135.
You Give Me Something - Guitar Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e15e63c789b16b28067ce00dd95ca2daaf7a93592344504962935d9b16393a. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/NLKD42101753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462046a3935f5b752bef9b02ce9ad790bcac04e1c1470f20a66d7160e525275e. 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/NLKD42102414.
Say You Won't Let Go (Guitar Instrumental)
Say You Won't Let Go - Guitar Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b98df23e13c4481cc9230d2289fb8f406972e510354c765813c47e9ccbe6d50. 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/NLKD42105975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb968d06bc5fb2df46428d11068f06e7b482d966f710167d943b6acb527a4f3. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:43:53Z), 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/NLKD42201366.
I Feel Like I'm Drowning (Guitar instrumental)