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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e656242dadb29fcf3551774f81fbe391bf6ca776fb8d1236983c94554b9e61. 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/c2ba4bce-8f8b-489c-a615-aedf1eb5afd9.json and https://artists.proofprofile.net/proofs/artist/c2ba4bce-8f8b-489c-a615-aedf1eb5afd9.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5719e290779b77f2ee32191f2a73046304e2e0232d10058c35415cd2181facf7. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/GBSMU3805821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1978eb6a82d13d0ee9b40d92664f4ff688f9fe08ff3cc44bd351f963a6cf59bb. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/GBSMU4643986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78bbe3ec14db915cae6ecc08a7341d3a3d22f92afed6249229a828e0c39719ee. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/GBSMU5106105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100d33230b8e5e7c11a905da54c723d9ab447544af21e42b73f7247fba7568af. 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/GBSMU9725394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd71db72bf3f40969090f227913c628fb670a3734e7919e3e04e9580f8842f4d. 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/FRX282160190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a35e8c4e787056ea9dcd3d244b0b3e1a40338edb9896296ce584b2e7e6867e4. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:10:28Z), 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/FRX452111260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5127338c0488a291a496446901f18555688a01536a185d753d2dac9ff6d45735. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR2X42254145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5426b8bfabc647097dfdad4908a39cd7eb33f090d1d11b898d250ddc83a4ccb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR2X42254146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f269cd8ac093e7f1e7e41fcc6743003fe0744efc7146ba83db1877ba8c5555. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:38:53Z), 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/FRX762154039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74facbe554238317b4f4df80d03e0019d1e362e34d8b9926d0c9c420c34ed1b6. 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/FR2X42254147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0810d62a98687239d7a94702322a7d9ea0842ba0c4eaa8c86a0821b8a20e9a11. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:35:14Z), 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/FR2X42254150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f202f0f2f8bff3ab9b133c7691fcb95bd0c6539cf7befbcd96a9825669556d8. 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/FR2X42254151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a16b4484c14d7769597f6bc0d8c3c21a3f881c4e80ca9b0adcc12fdaf7fc10. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZRP52305451.
bruxism or, why i'm afraid of earthquakes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22c3fe18a1d6e9abf7132c45dee8708a1383e1003cfd13ebcc570dca629b9ce. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/NL8RL2428736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a89f13de5e6217f36008a4e97c57c9d29ee3b1e85d4c2e2c50a153f68a117e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NL8RL2428737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847ea69eb1316352209d8a2743907649557c4807e5b4506203717444c9e80487. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/NL8RL2428738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca8cdc0c70ce45d3ba1218056a2b94d8be881db17757cfb8d98144769b5e706. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/NL8RL2428739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058ccb19f78b0f8997cccc5fd9c94291571ac20d7027f29681a48b9998f5bfad. 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/NL8RL2428740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf578e73599db05b10ee31ce4deecffd8bc76d021991779ea5b5a993e2306a283. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/NL8RL2428741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d0eb70424b68d68b5c636b7925e933afef63f5883cada461425971189edd0d. 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/NL8RL2428742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388422adebba2abc1173ecc89e1fb6cdd0fbe07778ddcce168aa86a88c3e450c. 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/NL8RL2428743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d354b742ed2e5c867b0dc6a8541a33f69af5fe2fd7fc04bd3d085e2443e280. 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/NL8RL2428744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40426f6b8a04697e495dde8decb98d7e1d0c98f8ebd9c4dfaa27e1089da843c4. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/NL8RL2428745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b1840f23bf8f43544e36ce7e80a955a7f888b46e5c14e2dc9967b9ad285407. 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/FR96X1878009.