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 0x9620f051aaed4a3643c97b23450bbf6aab310d366c75c695943e7554a6c08168. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce1ff7cb-3580-47ae-82e9-0da7d9e61c3d.json and https://artists.proofprofile.net/proofs/artist/ce1ff7cb-3580-47ae-82e9-0da7d9e61c3d.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 0x5cdf6aff141aa8effdfe72dba098212eb71ad4ce0bfaf2f1f0b7ceeb236531de. 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/FR6V82199366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d1dbd350f8de07f483ca0a037e645ba1543627fbf286fcd61af25c725839da. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR6V82199368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd4dd83f96f5722b6b64a225bc43c002d83cd15696c574280ce8462b7b3aa5a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FR6V82199371.
Al-'An! (And Your Night Is Your Shadow / A Fairy-Tale Piece of Land to Make Our Dreams)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4ed8298923e9a9b4d340785ca672a9818b541d56d7974cc45f10e8bd4fdc04. 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/FR2X41792487.
Our Mind Is a Sponge; Our Heart Is a Stream
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a27c9859d1b2228fc350790f3ac629cf6c40ddd3ea2b7455c9e90e9b67f8d0. 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/FR2X41792488.
I Don't Know, What Or Why - Mish Aaref Eish W Leish
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22dfdc285adc5f0befa4bd86656f849cf14931e24674eab717c2f0179ab7fec3. 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/FR2X41792489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2986366412b30c97c5d31a9cb4d6d065d92b1d4ee6881e12fe0b6413b982ec8. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FR2X41792492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f2f1ee9d4afc50068f9c08dd68e7c88ac2a760be11994a757f88309afd469a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:19:26Z), 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/FR2X41792493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0b2849aa4ac05bae3e8930b0a38c95b18addccc8b39d128705c2334f930664. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:07:12Z), 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/FR2X41792495.
The True History Of The Tortoise & The Hare According To Lord Dunsany (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c6f79e7a584561ebcd19a462aaf20d67273aa644bb32c3f779f11f28b95df6. 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/FR96X1996085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd501bc3019da69fb5d5583f5de5a700d32184f93d7b129c4edd1e282b34a2725. 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/FR96X1996088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa9c563f5c503c3e80b2d5ab1a66ec1a58e4c2be6775e6aea1663131bc36b45. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/FR96X1996089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00f125d77a45d0321c54fc51c6a21b727e1ab3e208223081d84a4f81f999732. 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/FR10S2006224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f2f2a9232074acc9fa52195c8e0f94fe2f917aa00a19a3802435f4c442a8c7. 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/FR10S2006225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120ab568eae2e4b2dfe33f124e238aaa4f48467922a5156e40f1af8fc1cdfd36. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR10S2006226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af559bdf7a9726ca3c6f51081f6b37ffb63904565108166965013cfc4507dd2. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/FR10S2006228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443daa11bbca05a9ce13a5853a7b53803e1e909f40ad45172a843db91d2e7446. 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/FR10S2006229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2617ed7767f7278fbdd479edad4b933f416d88ff0ff7ff8cdf62ca12c58ad5d. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:09:50Z), 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/FR10S2006231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4fc146b936a6bc164d7afa103ecfbc38e8c0cfa102c7320310107b1746deee. 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/FR9W12211696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c5f18479e238a8301e6330f985c0fa9d4dddb380ea570c1951fddba9c82999. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR9W12211699.