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 0xd01e126a2a1a5ca7960ce56553475cad94da79095f47598155f8410318001bc7. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f6cda08-ccdd-46e0-bb5f-d6d858952c1b.json and https://artists.proofprofile.net/proofs/artist/9f6cda08-ccdd-46e0-bb5f-d6d858952c1b.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 0x372ccb0397476beec700a26bb0d3eaa91ea0ffd810dff555fa0c1e42c1803293. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PLS922520193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd0b1c39f42437f8b17b1cc7350e4f9daa9a5492ed712ccb00b5a0b0e3f1d2d. 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/PLS922520194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2544fcad5670e19637654a8dddc8378baefba51946bf487d757631a2cd4c77f0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PLS922520195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3e0b071cb4ea38cb7b0720605fdc914995fbb4f1997bff159a9035c221ba0d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PLS922520196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda74e129999455628857d8a621abcd45f8ea31864b12dd515d91cf8b3d63622. 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/PLS922520198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea07b1012e019ac6083ece187c733907e7abf8e80e2cf3c930b66b22bc79d167. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PLS922520200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fc5a66955981863164a5896cb83852491c76a86f4cd7b9ab6ac974a8eeeafc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PLS922520201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90cb2f80700bf3c35546ea4016682be40239f2c80ea7d0452a1f7da641481904. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/PLS922520197.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629f72f53177d9b6cc71b91f1f20ab60995e5201a7f7889889df92c53bf2e462. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/PLS922520199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f4b174d1f5a4019f2f705f09ef010273a55edf2bf135559e244b3bb83dc187. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/PLS922520202.
Nyt pelko pois: Aivoja rauhoittava musiikki, Onnellisuus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839bb7e546140b7c0175b02bced62ea9a0b62ff2d867978eda13283b136050cb. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/PLS922445052.
Rentouttavaa musiikkia koirille ja kissoille
Rentouttavaa musiikkia nukahtamiseen: Stressin lievittäminen, Raskaus meditaatio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1adad8c23bf0745446d5b42329ae73bcae536673f5701da06c02266edfb4df4f. 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/PLS922370403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ed9ece52fa2e82fec097f6049b4ab0d5dcb054fe67476830a326315eb4e040. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PLS922370405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccaf49a5462a967396786976f6710247cd8d1d8b9ff20236b9f4360e6beb16b3. 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/PLS922370408.
Tiibetiläinen meditaatiomusiikki: Sielu ja ruumis, Rauhoittava musiikki
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8befedde1a80387a90ae48095955ba5ba3695cc8e276e6693733109d123ef8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKR4Q2081466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d9acbb5aab05028d3352833a3378340735fcc8966e223e5e4bb83fe8fa2058. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UKR4Q2081480.
Vaivu uneen luonnon äänillä: Rem uni, Rauhallista musiikkia nukkumiseen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145dd6e12036835f57731edba20f2168c80907e89432974fbd1af71e4eb6b3aa. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UKR4Q2030629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898e07bc1d7b50b9eb37a0e41bce841606c8401543133a345d9a7220d1145ac8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/UKR4Q2030632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8ddb7543936a43772a2862bd5ea5a5e46c3645190b0ac68f96bee1320377ae. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKR4Q2030633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb044c4a4a65dc1b766371203ca81187440dcb7ad5a9875f40ad388291524e4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UKR4Q2030634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e79b14efd337cdc0e6622623b361473fc944417649dfe58c6f9082c8a22856d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/UKR4Q2030635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a218491b43ca4fa4917f133f63cb80961dd5aac77b9e41c03d355615b60af9e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKR4Q2030637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2d8d02df8bedfc27a34efda5e032439f7307c212994712ba0359c87a443275. 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/UKR4Q2030638.
Rauhallinen musiikki mielen rauhoittamiseksi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7382eaa0f9cbd641f24b3e2262feea75bb66a2cd70d3b3fdbea919a64e68f39. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKR4Q2030639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88632a203f15f70cdf3012b05db97e474fa7efe61ab514910fb74e84d5a9af06. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/UKR4Q2030628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a18611603b1e544168fd43f5135679ad11371ac7908166e1012e9ca4e33d41. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/UKR4Q2030630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69bc13b8fc085f10e801b581e6445713a7f029a1b7957c8822447b4c87e4e8c0. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/UKR4Q2030631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e19f9df7ba0a001c446e5b6ea10430dceb401eeaadd56bd00dcb240a181cbd. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/UKR4Q2030636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6840240ae0b103516d1200e415c4e18b44d7b4be46bad66b9db2ac2bad5636. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/UKR4Q2030640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c3ef4561c03ddab37e8e4b076aff510be37e71d04f7b9e71659ec39a878cca. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/UKR4Q2030641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52e505627577e3b2833b14cbc310638695ed4771e5a113ea997d3f977baf917. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/UKR4Q2030642.