(Medieval Latin for "Great Charter"), sometimes spelled Magna Charta, is a royal charter of rights sealed by King John of England at Runnymede, near Windsor, on 15 June 1215. First drafted by the Arc
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 0xee26d3adbe8d6e35154f4dff1b55384b4c27599c89e2c2d0255fd4be7aff3c74. 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/4873bf86-8ad0-4bb8-8489-ee01da60aa47.json and https://artists.proofprofile.net/proofs/artist/4873bf86-8ad0-4bb8-8489-ee01da60aa47.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 0xdba9343eecc696be75038d59323018ac7912aacec01ac33f52aa767c19f4a50d. 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/DED467300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c097629b5fb61297e76fdf3e9e8be1b2472ee27cb6e547ffb4877413a5c5de. 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/DED467300047.
Isn't It Funny (And Not A Little Bit Strange) - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc866b9697e08b845af4aad81dab50b555621a50264d1468c9d235ddbf975683e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:41:55Z), 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/DED467300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6844d4d6c0ac97100430e91a0c43d8cecaf79798242a53706004c10cc5eee2a7. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/DED467300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210f7366fe90a89e143cdf1b97639c34d2fd576aa4b84ef914916275c5e6f528. 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/DED467300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772977112900152c41f1cca684e36c771958cf90927ee5237d8491700f83638a. 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/DED467300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb0bdd98d3dc831d4ebd3d4cc37cc6eea863074660c5900a9b955967a846e27. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DED467300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb918484daa1c754a8c7e34da037cbbfe354aab1dc24a783e2258e021206577b. 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/GBF087000592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd370899cfe752b2e72eada23e69bfb4a71682d22688ada1cd0373652d4e7183. 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/GBF087000593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e2faf7f0e87dc4b8bb6f4149ea45f89fc1f49a6e442cb6e1d796044c7c1f3d. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/GBF087000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a76ff5d68c0f84b7264f93088304dab1249cdaafb82fd8954ff30bb59be3fdd. 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/GBF087100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76c236c1ca6b0d64d39a0eb2929b1bcc5331ff7da15cf08e212056aa0d10e9e. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GBF087300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c18e04f7daf8f32655287f2e0a6873d92012309ac8028898bf158a6514bc37. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBF087300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c83677076cc46b4d79471dab1df452c73bf6b4c7f4e4c606a1a0ce0384feb8b. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/GBF087300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8980c3b09b3f77a0cc22f111e6ff089ba3c7b225d3a400ba911f3f08f7b41159. 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/GBGDM0507902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fef8e5d73963ef32a6a09c7d444e5d7a879d89258f6a80ba1ba1d891a8ab404. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBGDM0507905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92ce855ff0fc5183480dcbda50e8875f59062a58014b92c779051f6efceaced. 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/GBGDM0507802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20afa450f70a1e577848d5cb169404f4faa54bb6f6a1fe299c09c28b157c50a7. 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/GBGDM0507810.
Midnight Blue / Live And Let Live (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77509a512bea1a7626f8eb390bfcea9c705a5d2bca2a6806da3964aea596ff40. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/DED467800045.
Tomorrow Never Comes - The Anthology - Best Of (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d250ebbb6f87fca190556045e9270551fca96d6389308c854ba94d243afaac. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/DED460700072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ec9c935452fb8ce283aa207c6931bd5123c96596784362d2b3b2e48f05be0b. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DED460700073.
Love on the Wire - BBC Sessions, Live & Beyond
Jan Douwe Kroeske presents: The Best of 10 Years 2 Meter Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6780512307a7fd0d8e60404dc409dadd9904c12ec44cdfd7804080166153a6. 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/NL07C1700789.