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 0x909e68114eeb433661015eb5141387ff73ff3f7b52c7308f56ee5dcdeb74dccb. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3b370a9-a29f-49a8-a0a4-5b402df6e6e5.json and https://artists.proofprofile.net/proofs/artist/e3b370a9-a29f-49a8-a0a4-5b402df6e6e5.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 0x4fcc565f1dca869a91d0d659f0964b8999f79937c810f73270903f7968954938. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USTCC1048861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723c0672343c14ddc3a977488169634508ef203f6142caba2e376aaf2674cd3a. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USTCC1048867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f06eae39164fb4648f4d9678c43f1893baac2a031863343fd8d6de17041b840. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/TCABK1270043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1d42810bb545c6f57fb2af815c8906eefc86a102e57bd4917a6efbe837ae76. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/TCADH1754602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aef23650c9b8c855f76a714634526dedf15773ef20ef2a3da4a9f03198c9e73. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:26:05Z), 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/TCADP1866080.
Ocean Sounds of Cape Cod and the Islands
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6eb3b736477c5f471d78a1fb41914bf99fc5de0979886182578976dd3f0ca71. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCABW1433388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac0c1be198e6300ac2c03c01e23fc9c1f677152e8fcdb93e3990831910a3092. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCABX1408238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4203edaf9e7a2214f1d18c902937a9738c257645d664c60ce46cb0b0d1eb98f6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCADJ1737162.
California: Ocean Wave Sounds for Sleep, Meditation, Yoga and Massage
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b4c8f931a8389422bf458234e9f3d435e3788071786ffc5b8ebec3f4d10450. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:07:55Z), 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/TCAEN1976531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e39f737f400609771ba942cd8915ce6191609e8dba7dc38173ba3ad63a92328. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T15:37:38Z), 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/TCAEN1976600.
Buddha Beach: Ocean Wave Sounds for Sleep, Meditation, Yoga and Massage
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f8ea5901295df992433c8f202fc4482a79b7782b245ae7a393ade0f9eee25b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAER2053071.
Piping Plover Beach (Sounds for Relaxation and Sleep)
Hawaii: Ocean Sounds for Sleep, Meditation and Yoga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e13a3470bd87a4e9f9abd059f75f5ed66a5165ab652f1d9333b82cb77a908cb. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:25:45Z), 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/TCAFF2092972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d455c04310da3767ea4a74ba4f960290c6735368d544313ae4bc5f8cafbe99. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T07:39:11Z), 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/TCAFF2092961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bcdb540324929d46c4d6c4ab5c8739bb8a22ea2f8a85dacacd90a92fd6c370. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:36:32Z), 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/TCAFF2092950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fbce1dcaf3bc2e5ea15ad4d1897756cd27fe345b5734f9d8e3a5a8cc6ebaa7. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T15:23:51Z), 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/TCAFF2092964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41bee7c826fa0956b1dd456199d9fb51af808aa87a40d74ec861a1776fce460a. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/TCAFF2092953.
Buddha Garden (Sounds for Relaxation and Sleep)
Campfire Beach (Wave Sounds for Relaxation and Sleep)
Osprey River (Sounds for Relaxation and Sleep)
Nocturnal Forest (Sounds for Relaxation and Sleep)
Ibiza: Ocean Wave Sounds for Sleep, Meditation and Yoga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b68c6052b65787fc5f12108fc4bedf58c7de1807502e400a22a637ee94c3c36. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/TCACL1608534.