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 0x20497a2b409aabb38d8a583e424c34fd96accf4aa3a55b959a9650895e7b6f15. 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/e9818882-2263-46c8-8dc5-2bfceb3eef12.json and https://artists.proofprofile.net/proofs/artist/e9818882-2263-46c8-8dc5-2bfceb3eef12.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 0xbe2cab212767c451ad813ba3bc12a083fd93149e4d7c2291b7df6f60806bacf2. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:07:27Z), 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/GRADG1700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0598c0215f39cabf5c3822dd79330e175fc665659c1f087ff9df595e3e7f5bae. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:10:36Z), 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/GRADG1700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4935d94e774ec349313f46ad76126714341b5b19cef26fc6f9d78eb63d995c4. 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/GRADG1700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c79cf814f420fd74fa178f5b74fb56ba577fa4d5790dc2e03fd9ced2c94af45. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:18:02Z), 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/GRADG1700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6818c6981b4ff0cfad66ece537a3e7a90b2af4f8cc1e414d7d3ff3cb3897f72c. 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/GRADG1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad7d00c9d8c1355add5a9222803122ded34738fa7d23192c0418f590bc069da. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:20:41Z), 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/GRADG1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da7f824d34428f41e18659e4e4c91d9b850eba288fa62e6624d5ccf4b283106. 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/GRADG1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad615d14d9b5ba0ea9ab5c1fe164553d5f2ddea1163d778ecbf0f9288aee31e0. 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/GRADG1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719bdeeb045df7a7d47db6ea4c691b6fb5a78d7514815260c657b5db56414255. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/GRADG1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c7fa1ab2ed4ca535bc9fd3bed9212ba0cc564c790c78dbd0c8525f2a634c88. 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/GRADG1500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2930ae30e84a2f5282aaab5e04dfbebafd407b67e6bd5103beda879564bee7. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:47:18Z), 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/GRADG1500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e3c513587ccb11b23afb232f080f4447d0a32da12a0a9e057509dc806c783b. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:39:17Z), 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/GRADG1500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bee0a22598ef543a01de7e91ffe91cecc42d04bed8a56a5b7a5a66f370bd3d5. 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/GRADG1500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbf6618ce333f970f81a358a3ab20dfc3d5909eecad4c959423c6b2314be327. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:46:58Z), 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/GRADG1500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b39a079716bc979610ad747b601cc8bfa811b88624492545a409b6aa3aebd9. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/GRADG1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16117436fec54af9867a26fdd1a2a6511e67c63a9ba04aa6eb854c5f216b355d. 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/GRADG1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5081d13df0774adc6b46d792b060b518a708256f07631062d028180d9e12f82. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/GRADG1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a51b23b3504020d738489239e072cc5195d3add00ab67b6a91811ca5066fe36. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:11:00Z), 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/GRADG1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26480566452e15b7dc900b78604d086eced517cec8495b685aaddd89e3460821. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GRADG1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199cf5bfd65e90d113594cf5863e65f22661f9445a2d9ec6fe74c0fc19f49f54. 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/GRFSB1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a521d43532ec066cd702114f4b804e5d9f6c4daa99798f80967f6fde754612. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:32:47Z), 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/GRFSB1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc66d6709dc635d3395fd5c922ded52bbac35b9057df3083d5a6882a2b8e7bee. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/GRFSB2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eab0323a4c900d452dbc8f54d3603f823b71f7591547956907638bd5a3bacdc. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/GRFSB2000004.
Oso varoun ta sidera / Egine o thanatos synitheia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24551946a920cfa942539f63e77589333d0f001b971fbb5079a27cf3ada69b40. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GRFSB2000032.
16 Rembetika Tragoudia me Kithara (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b35e99e84aeafb97ef4460c4054c6cf8f1a92a655a9ba1f8aee72f76b8ea09e. 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/GRFSB2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8028d306cd577db0f8e7a16c0c20844bb2683772236ce2827ee0069846faae4. 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/GRFSB2200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2a8bbf7f43732c11dbdc828e6b77f95103e5d2dc9662dc0a784652f8bd112a. 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/GRFSB2500001.
Nella notte ci guidano le stelle. (Canti per la Resistenza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e3712fd053da1fc187e03244e28c3b6720c7525a1df07db2d9841a5b511d7a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITQ242302668.