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 0xe53259dabdcd73be868288fc776f0cd6c9f19dee97cdca409431e21c0da986f1. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d68100d8-5067-4879-b8ec-05bb1f9f8508.json and https://artists.proofprofile.net/proofs/artist/d68100d8-5067-4879-b8ec-05bb1f9f8508.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wind Chimes in Nature With Endless Loops
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 0x8f0890d725c1ab6c7297d72c49a0d38d550d2578921bef05d179c6df222c032a. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T16:19:32Z), 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/GBRKQ2277442.
Bamboo Wind Chimes - 4 Minute Nature Meditation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b9541b114a77dde9ea34fe34357918bc966380fcaf0c2bd96a8d9453efa5d1. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBRKQ2277445.
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
Bamboo Wind Chimes in Nature - Long Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d57c5855f742c6919a11df72650f41f1290d32d2af748e355f5152c27f12ad0. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBRKQ2277456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0145451cb249e14340b59265f0fbb8af9af212281e6e41a9ae8ccec95888523. 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/QZ5FN2000877.
Zen Meditation Nature White Noise New Age Yoga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65c0cce98c0cea7b2e1a6106ef90cb02e23a2796be21e5e10bcb21095394f0b. 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/QZ5FN2000878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4f80118a8a343b5bd070fd7b01ce1f068014c4dffa695e8077251d2d672069. 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/QZ5FN2000882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba1e723015c7d3dd0308d6192255058bd9009c904ca08660b51521a134feb26. 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/QZ5FN2000886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98a408000b0494f0039fd2b74189514097ca664b57b0b519760a259d4524c50. 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/QZ5FN2005918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee9146299212be0610b64e4147c3ef7915a42155596f7a06e404fe366b66072. 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/QZ5FN2005920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57802eba69f719d8ab2ada0c739052027fc7033ba77ae1ee3a1cede09ff6f9f1. 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/QZ5FN2005923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd449b091d3c70786a9e5935847922f1a1f6ccd1acb9aee27cb766453d33bd4c. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZ5FN2005919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58ebd9d4813b2cba04d2d37635de040f28d29722c45549b0499a26c04d20c70. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/QZ5FN2005921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbce87d28a0ad1bd980524c6c14dc21b5edc857a8b92275fcf17dc46af8c05f. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZ5FN2005922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe567a3790bffad390fa5fc6ec24d4f921fbdcb9400bd5e8dcbca67c06e46c8d1. 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/USLZJ1912710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdd247addb929c6c5f14693598b1d22f05e74a7398c7617ea7676b456611832. 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/USLZJ1644060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389bc3a17354a314497e2ffb7b4f047bae42d650ae39aa683c5a836a33b09c79. 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/USLZJ1644061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3094f82fd8df0b22436bc4a1961194b61c644898640a66b89a04eaf97236122d. 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/QZTV32318240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ea0cd600bf681f3fe0d567681e19a19f3414d47d3753b9907457f4c2b2214e. 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/QZTV32318254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185956f56a2050af0830ee5b868831f0069feb23ce237ca416967d9db2b070f5. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZTV32318221.