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 0x7c7ac9fc7889a10753222f26a0a7fc82a362cf0e36d3e69d4fc8095e3489ed79. 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/de15ee4e-ef7f-4769-b2db-92c2b30ad9e7.json and https://artists.proofprofile.net/proofs/artist/de15ee4e-ef7f-4769-b2db-92c2b30ad9e7.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 0x9f8d13238e7d28df6a40bf21625d3aac56722a575ee54544d05448353f76bcee. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCACU1621314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6639d8bcc4e0642125012e847076a9979fedbb78816039477857e025773881c2. Chain 2 (Bitcoin): anchored in block 957535 (2026-07-11T07:11:01Z), 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/TCACU1621317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565f25a607306c630b8240edb476235babd099205f61d70d82b106aff597f676. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCACU1621328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5bbc317c80c7e7401345ba6445f0be023c6b2cb6fc14a532cf31f5adf4d632. 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/FR59R1882830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217e61ee754550cf883d613fc309e9971d98660d9e99e4eab1cc30f5aaf3e742. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/FR59R1882834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaef9d3a967353611f557681540087774911025a60f94f093856b9e1a847191b. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:35:07Z), 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/FR59R1882835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ba1aeed6aa63d133cd07414bfcdcb13a4c30dad8d5995bc740d26a2f171b7d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FR59R1882836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2c995ab790ef094165b262c833fa19de2f9693357a440a8c89f292379dde42. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/FR59R1882838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81056cf871ae89a9657acb614c199a694916c7ce7054d5f8cad3e05c64bfdc2c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:26:14Z), 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/FR59R1882840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68ef7e42205fa5dd838d26f86f41b2d20db73cf2828ca4d165c390653394737. 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/IDA681900123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e413323522068ac3063f70b57bef70421522b338ae794920e31d00c1c9731d. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/IDAA22300227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c416389d9a931f5b6ad22b42b33d6119b8d23199d569ee7d10c6b9e4a127e60. Chain 2 (Bitcoin): anchored in block 957536 (2026-07-11T07:16:23Z), 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/IDAA22300228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2424fcede1699b506f94b1d64954a8750b2971439558f93f17a458ca68b898fd. 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/IDAA22300233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa728079e292483fe90aad5d404218c39110b1dc84374cea2863eefa139bc46cd. 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/IDAA22300235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7586e54b75226301b108baea7ee9a957669653cd4137b66355b5fe5e644b73. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/IDAA22300236.
You And Me Against The World: A Tribute To Mocca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0cfd883018b860435d27b2574c9bc8a9d6c050cd8286c217ff8d62651ad60a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR96X1997167.