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 0x5e12279fbd55c1e5af655ad0af3d9cc55efcb30d696b9cea2dac748fe8953879. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6492c990-9093-40f2-a360-db413b276587.json and https://artists.proofprofile.net/proofs/artist/6492c990-9093-40f2-a360-db413b276587.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Come Dancing/Let's Face The Music & Dance
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 0x8b80726fbe5c70040ed2a31d4d2ce7a21f7a3bf74c78f4e374e3be1818f5a843. Chain 2 (Bitcoin): anchored in block 957253 (2026-07-09T03:08:40Z), 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/GBAYE9500536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced36a58d4036e48fbe9ce487a5bbfde38b58e11f3ee1ac93f3f5740f219fc82. 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/GBAYE9500311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c070f6c160cb71585ad43c8f8e20c09bd3ece297b14bdd0ff2787a7aae9a6a8. 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/GBAYE9500364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014a264453bdf5b30a53e0c4037d8ea75afdc1e88e7ff54a801dd2e0649fb4a4. 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/GBAYE9500537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e9c47749b180c4bfce99198eb76135b7c8ce480a9a0eaf23e7b48fb35d5ee3. 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/GBAYE9500543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0b9dcd6cb96a6122d76119d69b92fdf2e201d84802da8bb242bcf3a681b8f9. 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/GBAYE9500366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d23a2c4c183a55f1f97bcc4e8ffbb199732ba405d4ca26e9c59afaad0ea4b8. 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/GBAYE9500544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce862c22cf788c40338426f4512fdb886834c1afc5a55a01a3446d00736e349. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBAYE9500541.
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 0x5d6617fa8406c9e002720cc2eee9b9d1284a2983397746922f67d1b945414aea. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GBAYE9500545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbf76cf8a21cce7ec1c7add0bd9b231d31b5e899df537770dddb5c1295f3d4c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBAYE9500539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe095943c2082177de2ad4aeae1c3369330123755c90e108289b562d81efdad4d. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBAYE9500365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d169e2836df29554c901e3000dbdd83f9486fccd0d7a7b12939aa33c76da39c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAFQ0700534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174732db3cc7157a4e1122866965df61ea45d3325070ae4d449809b23fcb0fd3. 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/GBAFQ0700542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac37eabc9cdbb58d7530a19ed292158ff84d92c59fc7297d142f135dfccca593. 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/GBAFQ0700544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6ef2682eca3a21753114474dd2ee29a3729e6873f508ca77c843ae18b15981. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBAFQ0700545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303238a51856eef07079197b05b3a23b700be74d655287bab2bc650c4f71762c. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:41:05Z), 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/GBAFQ0700538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b441c9b4857b558b56b3346d751709d96e09dd68fd548ec129e8e97861b522. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBAFQ0700536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1665a6452c57cdf1f8a79de5e68214e80ee8b83709137450fd5b351817551727. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/GBAFQ0700537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc40f65e32c77ddbf8bbca600a9a11c62aba9d87ce558823e1f130fa749d00a4. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GBAFQ0700539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3b0b5b5e88085f387b8a60c74f776ed74e09c8a9b1036de9ee235d292f45a5. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBAFQ0700540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f090917fe5330125a9017d7e7c60abce7f3736f1cab2d9178eb977e4d948e5. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/GBAFQ0700543.