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 0xebc46c67dbb6c4fb3459e6e321844d6f1cd0d7d713497c023e8772343aafad05. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6130ea0b-b3f9-4764-94db-7fcb2cec52cc.json and https://artists.proofprofile.net/proofs/artist/6130ea0b-b3f9-4764-94db-7fcb2cec52cc.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 0x1ba633344c5452130da88e43316d9494e7b9b13f0738a0d904fd6f5054f5ab0e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZAY591403254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4414950282efa3ec1ae177d30296246255c9f5d468a1192a35440d63e37c52. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ZAY591403246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b801d08afd4f622cac62741bbdd3d92450ca3ef0042f582cd078c5d8a42052. 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/ZAY591403249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb3e19b55a2b8504bf3737068519ca7d0342f6b4005d6605799c137127c9848. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZAW781400259.
Count Your Blessings - DJ Terance Re-Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35fc7fe441aa6951e7c2d7c34499b45b035b2c688daae3fc762356f5763ec8b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ZAY591403251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b82eec7ba0fd2f535241384381cfbe0eac90ad9fed9bed08c7f11a4a9034d7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZAW781400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0118fbff6dfd2aef63fe4de7a4bf53ededffa8c07f7810d0894469390079c46. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZAW781400262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84217926faf31c67f5c5a4ea51f4e43da989aae6e167010743feec2ea392e617. 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/ZAY591403247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c52f4af33065de292f1f9265008a3245defcdd4b9c2de3ddfafd662fb6ea83. 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/ZAY591403243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe097aecf1e019e367abadcc7cd86ad8c55cb41ee61495296c7d7b044c8ab3acc. 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/ZAY591403244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d45cb68ecd96ce46874f5efa137b3b21525a613971406be367212455a50057. 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/ZA3901400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24fdbe51db46af94e7d705a5d718600c040aa681c58d6abb859e5df40b7c163. 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/ZAY591403253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3a4a0ac5d8fc654bb8962ffa2c6c5f659b88bf186e19cca9d6d1a87bab1621. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZA3901400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b998805299d920a3a5fea62771b79440a20a83d759d3386daa29c33c9aff4da. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/ZAY591403242.
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 0x1cc6fbc32135d62b9f2b51df02a4aeb141fc773b6b7e4c7b87dbc5410a94f7df. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ZAP241400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba8ee2fd8d603313da82bca971b09459e0cb0814cb1af96e4dd6f69082e3d74. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/ZAW781400263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98648498aded7a9893aafdadaeaa0ef3f55f547f0782cf2f8044eb8f1f0c27e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ZAY591403256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf520d93cdc1105617a514065348328f1cee407d95d3046eadc7242ad80b5bc90. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ZAW781400261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fd429380cb4d9077a617577ca40e4eb4778284a13d2384e4df80d83d423df0. 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/ZA3901400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3c1553e660ef9b205cc2d72a8d8580228ae8ee20dee75efa648ac8cb953002. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ZAE5L2200012.