1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd660e56eabfd9de1824f117c2e3c8ff552eed757f4239e280a55bfa6ce782339. 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/0879e202-69f8-4fb6-9c09-9e77d8beb1fa.json and https://artists.proofprofile.net/proofs/artist/0879e202-69f8-4fb6-9c09-9e77d8beb1fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pop de Cuento: Ricitos de Oro y los Tres Osos
Pop de Cuento: El Hombrecito de Pan de Jengibre
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 → block OTSBitcoinBlock must exist at that height 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 0x4f770ba962c2a9d9769f8f4acad31a67fc14bb0a203d7cfe6d109fe654ecc5d0. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QMXNR1100320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96eaa7cb717eeb0bcf10e256bbfcb85fffb0789b2b6745b2233a4e5c83a8a809. 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/QMXNR1100383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5069749a529a2a4687cf6668709609b85b9f002ac8654795770681a0e9f1a3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMXNR1100368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5478625d79ee27e7c5d74d0ad11fb02eb874be20319d54cd9bb968bb82c45685. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMXNR1100432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcb4ae97c675c9906a4bf77dfe4d067264db4a770a6ac7fcec6d3c96812a133. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:16:41Z), 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/QMXNR1100415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134874ff30c18115bd520272ce3aa437577082c9f28a19e24f76b55acda5a3e1. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QMXNR1100416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe446c62e9035aa491f6ac0c66d011c7693c7ad8f8d4c741fe29ad53fc049fb5. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QMXNR1100417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba135e8df930de3a025f8567b15f66f0049f34c2220f862c3eef38b9cbd75a31. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMXNR1100418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1e924a928f531a41cd74d9ce89f922a0253426c8d811957e4eda61d01fb9e4. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:29:23Z), 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/QMXNR1100419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac25496db4b3fb2af48c7e53475ecb8cb51b76a0de6b7b970821cc5977bb8c00. 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/QMXNR1100421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9bdf236cdf5100106fe0668b303de54447e4c132b17e7ac481bb0b3b4684af. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:00:29Z), 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/QMXNR1100422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eadabecfee8d94830da6afd8bbc9195c5c770cf87550dae629001d4c19db71c. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QMXNR1100423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a84d220ea33b80d7dbe8fc5832a9dc41d81d398278faca3676bd3020947575a. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QMXNR1100424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730d83934a561d391e53ac72b52810c709b2892035fede1838e7b7cedab78ce3. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMXNR1100425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6ad31e8d7a8ec42d8cd8fd48321b6a3797b1c477a38fa34754ad05c3ce654f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:09:39Z), 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/QMXNR1100426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe201be3eb14bda058bbeae4df70e1c4673abda5097ec2d40d4dc8e3bf917ac56. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QMXNR1100427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c2df208687265a583be221b1594e3b8b318f667c811380c6f16a661a4fc7df. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:18:38Z), 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/QMXNR1100428.