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 0x65900616f7de9497b0809302f017d08df74c47b78b0b43935eb2a6b1db5142ec. 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/caf0c99f-1f43-4907-929d-9d3e4f01c23c.json and https://artists.proofprofile.net/proofs/artist/caf0c99f-1f43-4907-929d-9d3e4f01c23c.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 0x9cc0112112587c1c0ee4d588b9a2bc39f970fed1f9c6c5eea42e72637788f0cd. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/FRX452527888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502996e8f3f3e96cb60c35621bf440fe79df6faba11abb8308a29d52acda06b4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FRX452527889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743fcd0af9b8bdd6467d9fac0b9865035b72da37e4a204eb1d82b1dded583048. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRX452527892.
BabyBus Nursery Rhymes & Kids Songs, Vol. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383d952f5205ba8816e76399cd7c9cc8bc44a84ad8247986c25db82333e47b02. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/USCGJ2155558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75c339509d2eda6b5f2c7878a5c51d37ac6b90546a9ac2f09a33978be887039. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USCGJ2155559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e6efd87ca54b54ae7aca5dcb5f181c7fb4e1bf5b9224b58197e9c6722019ec. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USCGJ2155562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0d6d2bc6894daf4cb484766d19b80429eb2081623cd4a07358d80d859f53cd. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:34:59Z), 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/USCGJ2155564.
BabyBus Nursery Rhymes & Kids Songs, Vol.2
BabyBus Nursery Rhymes & Kids Songs, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7505ea750ee5cfd60120d111af13e21ad17fbc999bac0ff505688d7b0d8a809f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USCGJ2155576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfce5156fce07252c5ac3c712a3c970c5d6da8c42a02732de2d176362f7bf1f. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USCGJ2155577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7434bae6b0b29fb519144339606d6f61619358b8fc54d5838df57202efac9dd. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USCGJ2155579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a72b8231755ce19b7847bec047bad8ba9ebc116c575b846ca052031ca1c179. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USCGJ2155580.
BabyBus Nursery Rhymes & Kids Songs, Vol.4
BabyBus Nursery Rhymes & Kids Songs, Vol.1
BabyBus Nursery Rhymes & Kids Songs, Vol.3
BabyBus Nursery Rhymes & Kids Songs, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1e9ec6453ebefbbbe92752cbe882cee301487be791238a6069798e8124e951. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:30:26Z), 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/USL4Q2308192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff41da730454cc7b79ed184f123e8682437784214186b28dde0122c401d709b. 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/USL4Q2308193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e19a62b7a7790cb5e346a134266445e18afc01d97e3a127271f3da858b0d72. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/USX9P2097115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7996e59157728b50d6b226a567e02153c9e936422cea5917fdff3ad6d8a28a34. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USX9P2097116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660d1bb1966a4d813d9e4c58e86310c06e4af11acb734244d14a25f4606c5cf6. 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/USX9P2097117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9a67b4a1bdd215221e7b9450cdc6ebc889e9906e12186e9b78ccbc8b23aa27. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USX9P2097119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e72d1973fe53bc1f71d513b01cf9b34b11a3800cf8a27fac694484a0c696cf. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USX9P2097120.
BabyBus Nursery Rhymes & Kids Songs (Vol. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b6137ebc84f6312fe4ef86489eb0bf2aefcf74c5f5c4846b4624958802a1dc. 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/USCGJ2155534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada56a9c2f1e0083b412dc9c14b928b1ef008d030665dcf8e722d442a92a0977. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USCGJ2155537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707c43dd1f44697b78dbc8f5e7f4a47dc265aecd534cd7178c75993a3d0257a9. 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/USCGJ2155538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e271a594efc1366ef7c0e4686eee035dc783e7b06c5a1536dc46f385ca60024. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:25:24Z), 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/USCGJ2155539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1b27d757108effc6771796a6479c0f51d22578c9e2ea01250087103b514461. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USCGJ2155541.
BabyBus Nursery Rhymes & Kids Songs, Vol.5
BabyBus Nursery Rhymes & Kids Songs, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ffbe89c28b8021f8037ea5db46c9fcb5caeab45cf62ab1e1d5aa6ead859e9c. 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/USL4Q2308168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ecb972a4b1858aa6d705426f636b1bc382986885ecd8d4dd90dab16d543784. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:53:20Z), 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/USX9P2046130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ce19aa94bbf69adf54bf78a491659013b4de93672ac224fd4b7a65cee87bb4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USX9P2046131.
BabyBus Nursery Rhymes & Kids Songs, Vol. 7
BabyBus Nursery Rhymes & Kids Songs, Vol. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc025a4504e13be226ecd9bcdf2903b6f7c088ae3aa95143351d126f2dfd1f5. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/FR10S2507921.
BabyBus Nursery Rhymes & Kids Songs, Vol. 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7240d18465ce13273749d5fdfdc6c1b9982ed494333a5b66f136405db5c8bb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR10S2560114.
BabyBus Nursery Rhymes & Kids Songs, Vol. 10
BabyBus Nursery Rhymes & Kids Songs, Vol. 9
BabyBus Nursery Rhymes & Kids Songs, Vol. 12
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f045dad45de48e6ab41af0df53a3ebe4463d7675d3033b96195168026df5ad. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/FR2X42530026.
BabyBus Nursery Rhymes & Kids Songs, Vol. 11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40559dbed67d1cf0a3b216c50768fcbc89b4dbee12275ac5d733b5c141d38980. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/FR2X42530033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e704baa1a0764f13a7b3683600a79956cb6dc5274b8dad1608293400c9ceca7. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/FR2X42530036.
BabyBus Nursery Rhymes & Kids Songs, Vol. 13
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc940dffe6b69bd163326363ea020ba734705bba29d2365390b43fded9b01cec. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/FR2X42589369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb59c4f3012d5e2edb8ec88f986e271c2c76af6e1d0ab88a4e3e99692b12a546. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR2X42589370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01dddb24e6426ebab726dc77effac1d1df3e6aa3c68063a8e168fc36a1427fc3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR2X42589371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3cfb0dca1966c23c355655e66ad48e7527bbeae0f189ee2cb21c10a7b2e6da. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/FR2X42589372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973fe8071c165fd6cf8864024619858282ec41df224d8db6299f3c231f34f065. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:57:26Z), 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/FR2X42589373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15305c4d9e566336a18d9ab55a9321d9277948aa24f3f3954d23f4888c452e42. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR2X42589374.
BabyBus Nursery Rhymes & Kids Songs, Vol. 14
BabyBus Nursery Rhymes & Kids Songs, Vol. 15
BabyBus Nursery Rhymes & Kids Songs, Vol. 16
BabyBus Nursery Rhymes & Kids Songs, Vol. 17