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 0xe306c487bdeb9c50b735d36c4c125a4db19fd0439bb5ba9c177fd3a5b9f663a5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/69be06f7-19a6-48e6-9c6a-b021c56a1afc.json and https://artists.proofprofile.net/proofs/artist/69be06f7-19a6-48e6-9c6a-b021c56a1afc.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 0xe1a06582221232742a280ac22e7f0dbdf8a27612aa63b27ea815301850d1fd49. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:17:48Z), 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/SKA069404809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1658e30159c9c299e296d50612da33229a66a18eaae1cb1796189d11315e55c. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:45:58Z), 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/SKA069606001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43135de9a7a1ffe4c7c0e4e9250c13fd2a242821825872fefbad7addd93a37ae. 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/SKA069606007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1045ea5ad06e9e77e44b9ae80c2bd9e22302c077880d08ef39e156a0f1d0a31. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/SKA069606008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95e8d5f02733adc03d48ac15ca3a1ede3461852f41b91d1dc7f362d7bf98811. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/SKA069606009.
O len dievča netrkoc – Počkaj mňa, šuhajko
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20027962f967acf46876ad9ed7ed81bc99d51fabb9fc707d04225cc8c427b687. 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/SKA069606011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7c22a5d82cddcf695e8bead019eec18d7b866460dd602c1e4067a38a3794be. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SKA069809107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7386907414fab1a60202dd650ea7c5c0696613c98694400744b2972143d4c3c1. 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/SKA069809111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7de00095cab3c66b5acbbe330bce5d1925708ed414c4bf4832f59f319bd4ba. 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/SKA069809112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ed41e0cd423692b237084c252709d6404cd732d139e713f571ccf83a784a0c. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/SKA069809113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03f8c2537b50afc1e080abe09cd1b16b235a60a8ea93a7cce3f79e491f8a54c. 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/SKA060215805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ade018e15bbaff1540a553a048db281a48afc0544ec285e9f9e4dd3847cecf. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/SKA060215814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbda238af0b1fb61701cbf91fc48b16f50aebfb1d301e5125d35a25308fb92c. 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/SKA060215815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fa24cd22bb39b400a627790caa620eb654427828c27c5e640fd3096be85c2a. 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/SKA129080001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4114bceff7eb10c022959e91ce99a2ca30097bca4ab6b70212669a65e89c1d8. 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/SKA129080002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a40c2ef8df9de7f79bae2312071d8e0139f8018b3b2fd660a578cc25817fb1e. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:35:44Z), 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/SKA129080004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6fe12201085685bbb28502200bccfe58ed62997f227233daab129e351adf2e. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:26:39Z), 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/SKA129080005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6efbd26a8944f6325fe175b4502d567383aaae1829999a293a91d5d94497529. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/SKA129080007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe091cafc090d402a7d0926f98755d4600ebe9286b5a1a2ac1b66d5b512f1b03f. 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/SKA060823601.
Beťár som parobok – Na Telgárte hrajú – Povedaua moja miuá
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ae9246f4b27683e910f69bc40a2ee5556be8b0c037f9d9118d61dc062dd280. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:48:38Z), 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/SKA060823604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675eb25c8fedee9cb83ed72fad7f01f62455d76ad0ac173003741315bccc7050. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/SKA060823608.
Nežalej sa, miuá – Už je po pounoci – Umočiu mňa díždik
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56d65a9ab853447652582b22eef3e0a2e7165b81ecc1cdb9a4929a1799a01bd. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:42:35Z), 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/SKA060823613.