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 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 0x2cf0314f86ac18bb3964e345389ea08d5edd24ddfb0a2b6b9ce3004b7837fda5. 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/85db17df-56d2-4b50-92a7-7a7eccce5690.json and https://artists.proofprofile.net/proofs/artist/85db17df-56d2-4b50-92a7-7a7eccce5690.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 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 0xaa4d60b1071c2bf9299a13dfc5605bcb26566efb82d29868cc2d1bc3c3085178. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/EGA1K1809782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9baea846f06a738940411f138ddcd391fb5bf2daab49830206ae6f11a7aa48e1. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/EGA1K1809783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63b16a89624b4ba321f60ad3d963b2e35ce72067f343835b46bb1303d86b8c9. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/EGA1K1809785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3d09c235faa01b88890649a332229c83bea72fcd406888013faf37d971a0c1. 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/FR6V82038111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4401439e01e8df39514728cf62d1444fb9730e852f16f722e2ba0c6b04e2c2. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/FR6V82038114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74ebfb420e0e0e09d3493565166b7e6a013bc19d32696fc6b2f53e2d4cc5a95. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/FR6V82038115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75826f7e20102a45d6d64edd9fc601d821cb673cdc0939666546fff0fe60d13. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FR6V82038117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6d451b8011d8772eea291f0f1010aa0ae9625878d9981ec5d6e65d6ee12907. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/FR6V82038120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc934e191dc3f4315974e4550cb63a1c841346900cb570dc40143712ecd41eeb. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FR6V82038094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55db2bf3f330c1e5361411607225ab86055feebffd3bf48c175ff5043390f41d. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/FR6V82038095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3641dd6e0ca705176653b1239afce994ece7670263a2c237e1f3587e63467407. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/QM7282500215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d48cc70b6d25fec0d087ea2cdc357fcff01022851f6571894d0cc5fd6b766a. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QM7282500216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49ec3a0462f3226b77d7c961c2dd317b224861617c188b45fabe40c1248270d. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/EGA251615727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65522cfb706ceae306cea335f2cbf92c91ee09fd7cdd9abf244f3d942c5cb84c. 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/EGA1K1833075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fc6fe7eb557dcb32559911c4b5c9ea42149826d957074f4b9f18b57be83933. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/FR96X1805255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9296c23a18825688041f8140e0d8a859d292ebe70e02a2a2420bea3d41014ad2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR96X1805260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf198c912b1223cd8d913976295640a52c7c5742a916f20f3ccc3ed65d542bb0f. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/FR96X1805261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfa84c76133e0ee406ea539710ab6dd7446d5eefb6288b7bee6642740ca96e9. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/EGA251910077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd338b97afad5df3fab16cbecc66a12a7289a10d9d58243f71fbeb0ecdbe052. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/EGA1K2100683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445f3c1e5e4e523ee6784a38cf252beb1eb413dc61245a3f55226ee7c5cd3a78. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/EGA0H1502159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaea4db3a3d17b3bd838107b618ae290a63e9ad269ea99d9aace29b65102d712. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/EGA1K2103929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ab1f7adc05d99506a50eeb513e2e8b0bc9952a86564eb68118471ca84e2748. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QMDA72481582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8c12ad8973f619f77f551776adc94cdd8eb9266e2f577b8c6887b5551906e1. 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/QMDA72481341.
السم فى الحلوه كانو معايا و المره مشفتهمش
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351aeb40162922f5bc4750a42186a5bdf9d3ac301a23e0e9d820e7d9d6854007. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QM7282587009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99586786176f4d6ef15baf5ec924ff0a2975a145d487f2b86af5802cfd8a54c. 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/QMBZ92520630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268993a33262be7f457f558c3c0544259a0d0d16fcb907350d527650605398eb. 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/QMDA72481845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa934e54a263bd0a97ac657a8f7e24a314ec218916366c52ec60d6c4a4ba01383. 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/QMDA72547652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4243d97eacef000e6cfe21d88e1c95c40dbec85263a284745b41d279cdbd9950. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QMFME2515618.