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 0x4f53c01d7aebf1b10bb5b575a1d1bda46cf771eb2cc054826618fda7826f4fd6. 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/128990d9-3aed-4cf0-b22d-4f9f5c854c7e.json and https://artists.proofprofile.net/proofs/artist/128990d9-3aed-4cf0-b22d-4f9f5c854c7e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Collection of Soothing Organic Soundscapes Insects Birds & Calming Piano
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 0x233c4f2f95d234294b4de26f8949ec674b34039d38f5ea942176d945ced19029. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/QZ5FN2303850.
Only the Little Birds Know That the Eagles Have Sharp Sight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646a4c7a9617bc13de0c49720cc5b3e0b704b66f5af0574844a830b723f57b73. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZ5FN2303856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20188a5cfc7e7b9e2c52d2402d5d76a6a9dccf1b25f9a3bdad61218dd79add4. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/QZ5FN2303857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c12011e99e6588bc24773230d8c643f1ca2532abf0544debe0304ad5d16f91. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZ5FN2310015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450d149681119eefb3f6892f3084c2ca5b893a7514e0729a1c4b3b028621889f. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QZ5FN2303862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c11773092dcf613c8a34b3c1f51d1596c00d621b476da22ca27cae989fd9257. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/QZ5FN2303865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea5ec948f107f1412981ac319554912d6440a0369c76b2b1aa2e6ae371407de. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZ5FN2303866.
Our Place of Residence for the Upcoming Days
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfe29d478ea303bb65e0f435fa0d902bf2eb20cd5c8921bcb7be533fe399708. 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/QZ5FN2303867.
The Vultures Keep Hovering in the Vast Sky
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9bccb69e2d7b5d4fe9d4491ec8a3bdee72c46c820892ad29810808069bcbd2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZ5FN2303869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafe9136aa4c45f68c62cfdf2aff87804078e8bac02e521e8ff7291c47892986. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZ5FN2303872.
Falling Asleep to the Sounds of the Jungle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59fe217d8483e1b749e3be29add45507ce1fb1f26aa4e1c176a543742ba2c89. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZ5FN2303873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f009f0d314e827a94396ec2dc90fceca63fb1817b6300727218eb473eda7dac. 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/QZ5FN2303875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba0e7ad1c791d1167444001cb4ae9cc4531dd8c09c9959dc92f0ba07ff03ed7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZ5FN2303877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ac94ff60d57cf79cf1d929bb7891e100f885e9dec17353ad98f416c40cd7d3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZ5FN2303881.
The Jungle Hides Animals That Are a Bit Harder to Find
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fa2a37ea4cae5ecdbcde6f3fe6660a71d6aed3e298da4fdcd03eb905e35c90. 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/QZ5FN2303885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d9721e273765b8d67d12edb864eb688d0f04303700bac12730f84654c7a396. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZ5FN2303887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da78e084c6973b69e1ff73d30b1e42baa8158cce3cb89e6d975cb952fc82828. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZ5FN2310027.
Birds Songs Vol. 2 From The Wild Jungle Relaxing And Refreshing With Slow Piano