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 0x5457fd991e86d01bab92a1c2227b991ad28d9e6dda615dfd8588e86cb57d56ed. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9cbc0e0-87e4-46b5-bdc5-b467ca5ae2eb.json and https://artists.proofprofile.net/proofs/artist/f9cbc0e0-87e4-46b5-bdc5-b467ca5ae2eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Qué Pasará / Te botas / No Se a Quien Querer
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 0x29e54ee08a3807ef9fdbbe3b74c37620a1b380132c88e4d550154921176e00e5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRX872595198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc56365c6e3378e3768cbdff639b5f1fde22166064ea9ed20e5132c40fa277c1. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/FRX872595199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c09ca46a31ac8ce447081e982e61b345aed56658e51e562a1bf41a0ba9f69a4. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/FRX872595201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4d321e8b5a8b147c2930a10fc6fd5026c9997028a7c0f8a77ec3dcd22b2066. 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/FRX872595204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a123418f5adfb82531075d7747578667a5341a251b96bbf38cf0773e239a436. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/FRX872595206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfebb4f52ff205974a156aa57d4a186e0de668e21f1b6311064f9fd55db21d2. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/FRX872595211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2720e4c7db4d232dde79c2c00c6ac384f38c9334e26745f64943b896dadc04ae. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/FRX872595214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a1ecf0902f84d04de21391f1a1b76798ad59408aa5b13d412d4e50fdbf1612. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/FRX872595216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7474aa6292491ac0b854721cd5164a9de2f5fe244f3ccedb1b5b6c4fd7a6afa7. 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/USCGH2442191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82017b1ba2976bda318533f6534a268a8cd65f1ba5a96b9befb3bc00d59f2e8. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/GBLFP2468310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405ea4f94a9322d5ef4d6e66ebfb025369422a6a0857c0ff3fb7821569345c59. 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/GBLFP2468311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1b5f3f53de0fb81625082e678f228dcb336f50a3ea7a1b09e04f2bf64052f6. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/GBLFP2468312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23750dfdbfc7bfcc2833f15438477b125f1ce963ce1819a9aa5c5fca3cecd18. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZES52274890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc78ae8f131c347fa7e50ece7cb7dd68f32147e0068a8bcba410e4a3f7f3da2. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBLFP2468313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b107cdf67dd8d46019b69dadcfae28fdf72005f094ca4197edac5003e91c9c0. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZK6G2201426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d32d66a89f09b1c23087a55b043de9c52f246aef398f766f7b307132676113a. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/UKXN22474502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63909be338403348e02de10dd18a347206be9f715fdd8bc7700850443927ae09. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/UKXN22474503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e5c8f96747794605d560dbbab489c9229f65e0028ba88f33ddbfa7f55b6eae. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/UKXN22474505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3d5c81a992cb048e207a054b4b3c7a508e32d07b5b81b1ba37adcef6c07f4b. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GX53U2366177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa473b48a9df6d809bb5770b6be9075e4be335a9d7111ebffd5a3d4c135a7c749. 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/GX53U2366179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1c38636b0280b603d064f99b862662a22edc482db771d0d726179abe170e90. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/GX53U2366180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f928470a1b36f4fd171ad64f2426662edb81799ecbc72130c4cb158851b926. 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/GXHUT2568684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58a92645df26d629a2d8ced66116bb701703a42b28df05d3d11584c5ae654b6. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/GXHUT2568685.