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 0x00af203b10115675a7920b019ec7aefb0f375d9c8ce613b38480695413385e9f. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f7174e9-f7e0-4702-864e-8ab80cc0f696.json and https://artists.proofprofile.net/proofs/artist/0f7174e9-f7e0-4702-864e-8ab80cc0f696.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hijuepu.. (Tom Gasco Remix Tech House Remix)
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 0x6fee6df4d1bfd29bf942a33762fee04fcae9bab7af03bf7a88c4c1743d1e4066. 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/QM4TW2093700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5477ae5917a3a989a8e81b580659db84fea34aa630a9622dd40a7e561aa2682e. 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/QM4TW2093763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855812a800516f45ee82b1a3916bcb6a37aab908182a8a2e5ab78e89d29a922d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USEL10600152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f190324a2980e4ae5c5cfb8eea66e1d13a343835f2cff69bb20ba0088b90af. 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/USEL10600154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474ce87b145919d33137a3bd309be52d9203fdf7b4e927d2e92990bf35824af4. 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/USEL10600153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6191d5877a7623f4b854097e765bfd5a44ba69e3fd1f0de2e97dc8c218875ee9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USEL10600156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355ef30e52c2655cd3ef2f08cd47a334e4f28eea11bca6e6daa6fe80b43812fd. 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/USEL10600155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6acce64d8c6d330b27d27ccb40f0d6fa6eb4750262a51d0904d06d0e7025860. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USEL10600164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09bd82195b0a161c65640ac0b85c4a5e1064493b338c54141e459236d8633e1. 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/USEL10600162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6becafda4daeebe790e4c3effb76467dc89f3ffef2f761e86313b06cddc23282. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USEL10600160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe695a1cb16d8e35a76cc5f7b096dbe87fce99ee50c4fdb5ce1788b4dc7f56c16. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USEL10600163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b0d9127c2cb4ea477a7f49074dab0b2d98cd99b645c0e5d4a58a6e36a360b7. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/USEL10600159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494a55e89b9660ee77007d905abeb10de79b27dbf56fd8e5a7d4b10f59197fb6. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USEL10600158.
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 0xea505ff5e1b802eaae44cdb79fb31edbe64a43cb098abe92089aee8d61ffc6f0. 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/US7VG1500290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baf9bab1eb2c6679c997cd7e1ffa8eb2f82a1e8c441eddcf732fed3618ab590. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US7VG1500291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1161aa91de8d11decee1b5e8bacae0a8b2265d28d3eb7ab1536356fafcde251e. 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/US7VG1500294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a990e0a5f49a5cd64a0fe89dc1d27a5ee328a32f529b99075ad7bf057826e3. 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/US7VG1500295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c23f647dbaa2490dcbb2f6f877d42c77717c08661fe51b74b18ab36b49dfe4. 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/US7VG1500296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d70748e14757756afa1d1ba99ca7812dc5f65c136b0910b755050f3d73b6bb6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US7VG1500297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef5ade6ed87bd3c0b3c6d2a8ba407c789991b8abc95e1e59452782c1e1fa0e3. 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/US7VG1500298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4cba217ab7557b57c82de9b9d5ca19165ca076392b163be43e209f58c51d5e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US7VG1500299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d09d0c38bf2662b2ec630140563f042a0cb06fa167dd946272be22007535835. 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/US7VG1500300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21459a7e17e8f968c8146025e718fe98ac2cb508bf53d83dae7eedc1fd76ee39. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US7VG1500302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a0d016171ab722c27a80c5d7d6eea2317aaa0d9be21f8215c347ada0b654e5. 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/US7VG1500303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a162b71b078bd72b9d5f11ba5af01914992688671b00f19839459e6d5ec715. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US7VG1500308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be4fe73cd9b7f48378967c83492ce853755ad61796d4c4ce12e70e378a4f6f0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US7VG1500309.