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 0x6d7d4f67a0cd2dfac51b55091087b48f4e26c682c499f1fc3e11ae121ee3778c. 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/f2ad0491-716b-4d37-bb1e-99681ffc37f1.json and https://artists.proofprofile.net/proofs/artist/f2ad0491-716b-4d37-bb1e-99681ffc37f1.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 0xd70eb7d355dca734c98376de4fe0be4b5d75cdc3da4a1fb03fc5e491d43fc686. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/GBMA22459850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded372f5cc37297c4998eabe38c5fa453780b835d22d765c29abdaa82ac1716a. 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/GBMA22459851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e330ac43c8c9d48af2b805cb2c73af589e8c0aaecc2e16fb8d2b0bb3b4c8ffd. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:27:50Z), 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/GBMA22450791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438ef2bc7375e18b7ee5be4cb61f9463bed8da23ad64b0f7fe54f4851488c088. 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/GBMA22450788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b48a2d334dcda1dcc5f7eb54d6a0fded5a7f0a832fe20ced8ceadad1f2839a5. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/GBMA22450789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e2f1b5bd7710813200837c659d1aa94ce38a4ab0a63d49cff210a111c8062b. 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/GBMA22450790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ae43187c989e8cfbfaa8db19663a885ac53a9a4e8846915da316594d3696fb. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:53:52Z), 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/GBMA22464327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dadee31d0e35908c15da11c5e1572637c6ece572ed99c61af7dfbb8b753e2cb. 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/GBMA22464322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6136eb3c350aa215cf8b75ae5f032a179104ad376e101b0d831ba5b8d75db100. 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/GBMA22464326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b0d8a07b76dea1e123c57523f554cd59b9fcd02fd2dc49bb7792c5c487acdd. 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/GBMA22464328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e2c2e87aff8c9c2d4d275c05527259ecf79b1163c692a6a54d9599e70a666d. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/GBMA22464329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abaa20e518a0fb074e4577d91f747c51300072f61ff37a4c3b86240e52aa8c5. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/GBMA22464331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb05060a2fc708a2e988f5adc4b18a93003dd4d1b6c61aed30ea1ba7f4ebd0c. 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/GBMA22464332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc046fd765e9464d4345299e678a9edd7f31e6ad1687db18137d5d446abd09d8a. 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/QZES82492215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b020c1b56b968e267c3bf22757d6f72aeec2aa4541b634ad5d91ce97ae6be3. 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/GBMA22478430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901cad4e3cc191a94015d01b7512662d0ba27855ef838cf1c4d385aa8168bd07. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/GBMA22478487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5829b10564af77801eb1aaac9e344a306653b5a19bacaa3dd8941dd1e1c8210a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:10:21Z), 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/GBMA22360847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2ba274a0c6075802392d884718b5411379c5bbb06210f60bbdd64ca0eccfe9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBMA22360848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a026ef9d62b95c2906f30d4a4f6ac4c3679cf71f77c6629a54e728b102a359d. 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/GBMA22360849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b4d57afa89328a9abc520f55d2707505e17a5fe25ef3ccc31da0203b1fdbc2. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/GBMA22360851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e7239f3a7b73ae788f3b09f2a9be46aded13f14d775686a1f3bf3afa7e2760. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBMA22360853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ec2ab7ddfea6866521c2e3f7c500ef47280db770014f99c1317331ef335f0f. 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/GX53U2447016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bc0506830b24e9e5b0edcd46c6b10f709e614cd1c7db9adfcf2f4bc43e84db. 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/GX53U2447017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad0b085ebd713b8bbc94104d878289e14ae10a44e93d176cc7cbecca05b78a2. 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/GX53U2447018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb951e3d9ca548d9b769988d1feabd7c9d5afd054a46b06dacddcb736dec44bc7. 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/GX53U2447020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fde911a71dedc31bc1f069a3745f2194fb610110d524090e981592aae84d005. 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/GX53U2447019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1401f6937e46514322ed602fc55521024199718dcdf5161875dddd92744864a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:19:53Z), 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/GX3Q92520998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc92feda65a16aff5bfed9c1fbd0e896f5230180f0e9a30df898b66599a8f15. 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/GX3Q92543177.