1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x5f023d6579f1c19e57aefab39a7a0b13f2a38d858be843f5f39d3352daf0e25a. 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/d9e808b1-27de-4be4-9ede-98dacf305fe7.json and https://artists.proofprofile.net/proofs/artist/d9e808b1-27de-4be4-9ede-98dacf305fe7.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 → block OTSBitcoinBlock must exist at that height 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 0x31a7c850a919415f25b9cf4fcc8b3516155116ba00af5cddf870fb638c7581ea. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/QM6DC1571964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3f00e9d59c828c067df6b8bcb28db586e74ee52fcb25925f0dd69917877d38. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QM6DC1571973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3f00e9d59c828c067df6b8bcb28db586e74ee52fcb25925f0dd69917877d38. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QM6DC1571973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5993495d23beb9b91380c6104691ea24138b4a2e156d35390257d294e4dfc411. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM6DC1572339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3344d504f801001b6149d685923df07da5a906a738bac1ec210567f8701f2607. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM6DC1572804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c221560ce4e0750c71ad444335d0de5ac754e5aea616831466b1dc83e52cd4c. 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/QM6DC1572805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa808849827a3f0bbad9068dbfc7620a19fda70f06d0998cc92552f2c458c9a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:57:22Z), 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/QM6DC1572809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee726252233ae59d2b52cee59f5801273da051e720a9936524da11ea948db8d4. 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/QM6DC1572814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6c7b3523621e3043e4e2d3a8c107981473d71199cfb9f0ce564be5367386d1. 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/QM6DC1572375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f19cd66a062db6015e1aa2b284c9c283dc6fda16ebdec0a876a7671785d1e11. 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/QM6DC1572377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66d12c679a06077d353bdc62368f5597972834b6200634eafb593b5cbfb2351. 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/QM6DC1572383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d20daa899c56f52fab6d8cff294187ef5f714a3d065896f0c84246b29f3c0a. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/QM6DC1572385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5993495d23beb9b91380c6104691ea24138b4a2e156d35390257d294e4dfc411. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM6DC1572339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7617e53a5fe3a1cfbfa16c15485f7194785436dee91b575313836a75122e784b. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QM6DC1572344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fcbad55c5aaf798c9d5d6d36b98cc34a6f0941e76ee6e83938952be17c3f47. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QM6DC1571794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce00b31bd7b03e0174a231010bf053dffbe97a52013d9f0253b3e1d755324e52. 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/QM6DC1571798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a18e42df3175033ffe5088bef8e78ed427ba9e02d8d8cfd616dc0145363f3c3. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QM6DC1571804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02136dce71c24798fe2972295007f65f4c3aff9f0c60ffcc13a60849bb8bc99. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QM6DC1571812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fcbad55c5aaf798c9d5d6d36b98cc34a6f0941e76ee6e83938952be17c3f47. Chain 2 (Bitcoin): anchored in block 957668 (2026-07-12T06:54:37Z), 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/QM6DC1571794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce00b31bd7b03e0174a231010bf053dffbe97a52013d9f0253b3e1d755324e52. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QM6DC1571798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714d61179826822900dc62e69a335bc801a6b2dad8727357443fb64145f2a9df. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/QM6DC1571799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6728affa5d1ceda5af86bd5eb624d9203ad082bfa7aea60c7a17896bf6becb. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM6DC1571800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c221560ce4e0750c71ad444335d0de5ac754e5aea616831466b1dc83e52cd4c. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T03:15:48Z), 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/QM6DC1572805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa808849827a3f0bbad9068dbfc7620a19fda70f06d0998cc92552f2c458c9a. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:42:06Z), 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/QM6DC1572809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee726252233ae59d2b52cee59f5801273da051e720a9936524da11ea948db8d4. 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/QM6DC1572814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1cc35c56b51b6e1ddd2aaeeff248634bf4ecef025b22d8974f4cdad62a7a875. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:05:27Z), 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/QM6DC1572819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f19cd66a062db6015e1aa2b284c9c283dc6fda16ebdec0a876a7671785d1e11. 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/QM6DC1572377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66d12c679a06077d353bdc62368f5597972834b6200634eafb593b5cbfb2351. 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/QM6DC1572383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e172004e719116b0dd0b90875202460e20eab5a6bfc7bfcb22472bf5a63adc. 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/QM6DC1572386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9320b2f50c47a03427bc7411a3a7ad803b736f7819491586cf7f4bbcd3638540. 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/QM6DC1572848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ad78562b4c772053011f2de7ca53d55debd094b8fbed43f20f2569d3b33af4. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:57:21Z), 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/QM6DC1571923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a808cc01a65e46365b036d7c0f6b3194f50d084d521d099f4bb1884c4ed463. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:10:14Z), 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/QM6DC1571919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cac68bd0dbddd9ab173f8f3f61e39e572eb8bf252849cc1662b50422475b93. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:38:17Z), 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/QM6DC1571925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891890ede7b4fedfb4649c52666b0960396b040b1fd05c3c4067b8af0301869b. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:18:53Z), 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/QM6DC1571935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b001295282f618622c573bba227c3cc93503162e83c270950e12ad43105fa84. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/QM6DC1571898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea13e396bfb7285a852307a5af2174731d0168c110f0dea330e6435f303c63e4. Chain 2 (Bitcoin): anchored in block 957665 (2026-07-12T06:13:49Z), 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/QM6DC1571903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e615a3fbf9ab7c6746c8ccd539959e08d46d777ff63212f17c631259aa7cfa4. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QM6DC1571911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b001295282f618622c573bba227c3cc93503162e83c270950e12ad43105fa84. 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/QM6DC1571898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea13e396bfb7285a852307a5af2174731d0168c110f0dea330e6435f303c63e4. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QM6DC1571903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe3aa13b50e56aeb47949682c8c18eef7a5b9dc20a9cfe654e2fd5a7ce489f6. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/US7VG1986097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42b0ec330c6c769659f5da02e1b7a1b0dd50419d0ecbf71b068ad99d3f01854. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/US7VG1986141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc365f447e67f2c8d039f6f072d57170ee6f62672e6a43f52e09aa6c7ffc8e602. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/US7VG1986180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fdda881020a020a4f19163b7802a4cff6de601893d1c27f07498c6c741d814. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/US7VG1986183.
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