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 0x4619e8ded99d31bec6b984ad7788b934fb543c32b074e7c50c372cabc44e3454. 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/efc8a531-6e9c-4c1a-a9a3-dd85fdebc56b.json and https://artists.proofprofile.net/proofs/artist/efc8a531-6e9c-4c1a-a9a3-dd85fdebc56b.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 0xcaaf98b0abf42a59a31d572a8d0d9fb058620cd3cd17a048be425615ac09ee39. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCQV2200207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de23c8e5e02e94fba1f834b156225f76b128afb61dca20c71667f94f3300ae4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCQV2200208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9257e43b1584bcab78e31b11b184111e83f5004132144d7d93eb60567864c1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCQV2200209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabf4ed5fa5922fa4c6b28b0897a92483d4e0c7c76583f28111c34280936cd45. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCQV2200210.
...and the Pillars Tremble - Forest Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4788a012446887c0687430b8decfd4dc72f14b69976a7ac752d3d51e1605270. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCQV2200211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa375dedf09cdf8391264d8da061a0de93f6aa3c1542f6bd2c79f3c3707101606. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCQV2200212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a29cdda29149396e64b61f24405f734ae35fef829233afd6c48c8ffc5a7af31. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCQV2200213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595642f07091319329c343c8c783921885d8442aeee6f687a3a0df99209f3a18. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCQV2200214.
The Call to Adventure - Roadburn Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2320c0be12d0647b4f6fc20eb914adab6a050c50984efec569dcd64aa98e818. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCQV2200215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1442ba027bbdd21e80af0bd52956e2a9189cd99ef0aa7768544fe80f64a375b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCQV2200216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3250eeee613db98089d61d0b4a8ec36ed8e8ebdb72b22599af0f5a3243b45405. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCQV1900412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8b13cd353bdc1e2c95f6a408801550477c214f476b7b893d66a26236d06e56. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCQV1900413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174bf8b327954568a5b11e7af356263d5215370b2fa8bf05a903bae9144f5c8d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCQV1900414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81666d8aee8cded79abd74f39bab80ad4e37c4e052783716f5d2cf75bad1eed. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBCQV1900415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abf3a6548838fb6a4a761060fc208a65c9269c38cbcbc56531ada3618633a58. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCQV1900416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb4796583cc4fe619fbaea80e4fc9a66d35eef68b7d54e59335597622b5d7e1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCQV1900417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526287f01fe4f2ad0bff0efdd3ae54b01c6dfc496a07f3d1a1c18e23cff709a5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCQV1900418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1cd98a76464b51c877c79f1893804e610b71056a0d6708c4f572f26d850836. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBCQV1900419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e261bf39fe88e12283effec4cf9334df4e1a0e7c011591c6181f608762272e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCQV1900420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a12b0ba9a36d61801b31c2945a27e9d22d6888a0a334fd83e730bd05958cd44. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCQV1900421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ee50f4943f42dbd936ae09dd94c8b811bd153cef68f8df875f948c90e9f550. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCQV1900422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43ad8960b5d1b2d664778de22950a7a973bb51c4578d849d95e557135cdcb38. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCQV1900423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde20c1115b6a83d4a54d25f7e66fda3f819275499101ba6011ddc6a0634f316d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCQV2400532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9fb3788443f4c876b78eb69a3c67cfff65624f968f470d3d2fbadb8d35f74a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCQV2300655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa375dedf09cdf8391264d8da061a0de93f6aa3c1542f6bd2c79f3c3707101606. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBCQV2200212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abf3a6548838fb6a4a761060fc208a65c9269c38cbcbc56531ada3618633a58. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBCQV1900416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8b13cd353bdc1e2c95f6a408801550477c214f476b7b893d66a26236d06e56. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GBCQV1900413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ed98bd6a0a06609b134627602d2f20ff2eaca3474535fbaccf26b409cfdc4b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCADE1779602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b24b7595c98544aa944027d05d302fec457bebc15cd5d3c27f544936849dba. 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/TCADE1779605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eab40c6495f95a447f4b2a6884aee333b82c239e5f2719f69ab0400668c4824. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCADE1779607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe779ae0387c78a12035c12753cc089498c3d188a91ff128ede8a0a20e2194cad. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCADE1779609.