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 0x1576fd94f342908a8ffe7a9cf629691a2b001b749b30fc4a5a35ffb5e96a83c8. 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/65be7eea-e80c-47bd-885e-2eeedc2514e3.json and https://artists.proofprofile.net/proofs/artist/65be7eea-e80c-47bd-885e-2eeedc2514e3.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bba7a6cc9491e183f0b371f8314ea74fac0daced7455a01bb8ea8897da537ca. 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/QMFMG1483048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97677856a5ae9858858490959393040bf2229bb7c4ce2106d8c79091be9d9b33. 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/QMFMG1483053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb473fd793f05a59dac8f88f03766a947c5b3f4dd95c6df9a2f44eacb600724a0. 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/QMFMG1483057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45aba29392920197bcae3e669f01a63da40ea202704c40a331984b8593e8ff58. 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/QMFMG1483060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd717547962080151a7a77368a278cbda24f175fac3e68769a0472dd0ce7ac6. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QMFMG1483049.
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 0x3f2fc0ac6947ca6b51a7176219c75b6bb45d94959e97ba714f7287c6bd1af816. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QMFMG1483050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d29559b39c0f36553768c2da628685fa132347e31b359b383a666bd45968fe3. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QMFMG1483051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa366047dbe82148e4c7026c0fbd220ae5f18a5b6081824bc7fab84af803304d7. 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/QMFMG1483052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47223f9398888d688d2c7a6e291c27bc2e0d76eecd14674b687044f0e63066fd. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QMFMG1483054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e4224299f4b55a4749107adbb0fdd5a35b6cfc62fc1f11c08d710946497ff6. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QMFMG1483055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c0fea93743e2ae03e74f1c8d8ea7fad96431fcac72e46cbf2a6dc6cd3a28ab. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QMFMG1483056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73b4d4e10eeacdf87dd2b0841c602aea19163355cd35d0f9e98e547ef17ecb4. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QMFMG1483058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7dca025316fd4b10dad76bef23f22357a3b2b25c652e702ddd317ebe05ba579. 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/USA561348574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f43fa36d7daeead1066a5bafb685350b7eaf0b1f87a13b781a38c912b78bae. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USA561348576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e29dd30d65b1cbd306a1f224f8dc4ce70afeeb7baf74ff01b00ed6477536bd. 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/USA561348579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f2dec2e806873c9925fae808d5bfa30eddd58cc154f36423a748446095dcc4. 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/USA561348580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18c01acd48739d69bb2b0aeb47016ed11bc88fde59a71c0228b988d5862e47a. 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/USA561348581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bad215fa87261f52f16329f6a6165f5252b921705dda3f2fa52f2f7d6f28c2. 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/USA561348583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edfe8a558cc2b7f3d294bb015a032df7545bea06e534aeb70049cb9b0e84deb. 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/USA561348585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ec326a62a419ffb1c61a1c69c86846e2550ffc4e1c1ba1b02c6e5c75862ba1. 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/USA561348586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3aa27e8e14b09ce5faac03ab93a05cab44ded44a73e19b1885ff466c673b9ac. 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/USA561348578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886c2f1551332035a31f04eadcd479787d222fe1a34f485b763da937194e3530. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USA561348573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf392890b11e6289944dd97d9e832ee0e4db6f4ed33e9a67022eeb16cab492c. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/USA561348575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cbeec3ace83a99643f23a78ad83703400f1bc594817d6fd0a1427073890077. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USA561348577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb644d07fdadb182cf5346b4dd1455ac00e8ef858fbb534088f407b6df07ef105. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USA561348584.
Christian Bland & The Revelators / Chris Catalena & The Native Americans - Split EP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecd0b3d2eb0a84962b921a4a33c1bcf95b13babf0db47f836271505bd069b61. 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/QMBZ91518425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41dfceb02606539feb41d6747d183dd3488773979e42fe872fc6e0a4538e7227. 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/QMBZ91518426.