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 0xdda3e007ac0cea36cacc7b19babad006bb8c4ffdfb0356ca4826ef9d0a7cf0b6. 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/3fb0aa21-9000-4c48-b8ef-c94e064f40e1.json and https://artists.proofprofile.net/proofs/artist/3fb0aa21-9000-4c48-b8ef-c94e064f40e1.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 0xc3ce26dde00711f695f89c3d3642d64bf6bcb640a885009fbcb7b861b42c475d. 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/HUA500900261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb4bb0ae8f2c2af9890d05fb6e01abfa65a8fc9103c0b89e62f250980bbe28d. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/HUA500900263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc352bb4cb6a8dca8e24d1285f0a0624be767b1e6cf35f856a4e27616af5613. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:23:31Z), 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/HUA500900264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901cfb5fd9d1a1e4fa5ad0566838f1062cc7e60d223965afa4641de4f115792b. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/HUA500900266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4b6b71c74ea7bd01f305e2c967dd1f4339163284f86b8367995547f607b4b2. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/HUA500900268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5905b4f526c461dada6f48a670c824b8e74c3dcecdc0ee07fb9f36efe03d530. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/HUA611400836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a9aded757dda5de7cb2eee49228d557eb90440e03573ccbfaeba674ad808b5. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/HUA611400840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7072f6f214c7eead8aa5909c5374364e10c07bdb57537df43132656bcedaae. 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/HUA611400842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ff64e874123a236b25d6a233f7d8345de1045f0d4f4429f1757de3a48f04b1. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:06:57Z), 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/HUA611400426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a24cf038b93eccf266ac742247cce80e25c9f7373a78584967b661e4bf11d5a. 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/HUA611400428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd915503f233597a90c4ae159426647eede97be9eb556fe8891878ebf4b21b0e7. 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/HUA611400429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a439fff862283ae7ae36007727633767f657c6a4f410d1ade4a34b13a63e88. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:46:30Z), 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/HUA611601299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3b6fd891c62785d27d443904bb4201d9f25bcd5a426fbabbd1080010bd566e. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:37:59Z), 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/HUA611601302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfc470a5d63271938bff891cf2a1e8ca899f2f4c483cb240109d39404768d37. 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/HUA611601305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899492d749491334f7ba65335082b08d9ff44dc356eb26217b9f24a996fd39de. 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/FRX452070863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb281c348a360a62e07f00614f1be3ee117c826cf40a58d82e188349a07aa1652. 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/HUA611802556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc654ba898fc890a689c27563b6844c303c0d7bf6845d4d753f0ebe9080359c42. 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/HUA611802557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428e1cc8ea44a0c3d71ab7c945589973d5e269d3db175908396d5809cd280553. 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/HUA611802558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c18194900b0a3a755cd3ab4b46595cf3813c32643bcf4b7efdf57b674fa5b5. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/HUA611802561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5506dfc2ed33a2aa3cf757734362b8659d52d7c66aafea2c5c6ee7cd5fcdd6. 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/HUA611802562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37440de02124df9fa27ac11b887d940b288d907172f65272fff32d44c8fb9bea. 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/HUA611802563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6b213d9de7a32b6bc635d3f9508fde59b6d767e264841d4020f50176105d45. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DGA052015342.
A horizont szélén - Itt maradtam az éjszakában
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a0d59f060035bdfb6658b0e9b3b1dc958ca62ad9bb0295df31f2f77bdb37ba. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:04:00Z), 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/DGA052015347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dad078ed78de9f35e02daafb13fc66b9d945f0594e5f5a0df6803c2acb8e909. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/DGA052015356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d4b1c11c602dd18195c9ba19b34bebacc74614cd2d2d9535dea6b036d1c19d. 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/FRX202182383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d60aa7a00be015a8d3608bcb29a94d0c97c866559dfa994809a1c42f1205cf4. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FRS182121936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f7fd4c02627abb710c2366f7eb736877c4f4bb3b1e57b0f39b864a5e776077. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/FR2X42297016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1952d2249ea003c9623351315f451b9ca09c0c5bdf39702491f064614bcf40. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FR2X42297019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba693c9a5a128fcfcc54afd1ae3f895f35b890b340e741550cb3c6d6e4ddc54b. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:54:00Z), 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/FR2X42297020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50526142160a9cec63db33f7c923e5d171fdb5a532162e5997192be8c761d9ff. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:59:27Z), 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/DGA052352641.