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 0x3337e70311d6fd3a0ddd534283ac6f7c3bce5cae84800ee948edb32e00afc0dd. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c1e4ad2-f7b2-49c1-b1fd-07aec3e06581.json and https://artists.proofprofile.net/proofs/artist/3c1e4ad2-f7b2-49c1-b1fd-07aec3e06581.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Telugu Nursery Rhymes for Children, Vol. 1
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 0x88fefe6b894911552ecb826906fba64b93dab500eee72f5f4e88278341bcabd9. 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/QZK6G2044312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f250ee28d0470d9e6d28b23477c6d2dba43243fef29c10d92156d0402c61eb9. 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/QZK6G2044314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a95fa96720e3d3ba63519ba910cc1e5b39b0e9283a957b92d201e3cf7b4e37. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZK6G2044315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfe12a9217d6240237b276845282b67e199098111b1cdf9caad73b0bba1d75f. 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/QZMEM2053212.
Telugu Nursery Rhymes for Children, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9c74f9067db1139a536a7bbe73c32bf3f8cae6b4ef60ebb4f4950d04a1387a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZDA52126612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b193b04c570a0c94d1d598f34b0f3d26621594a005d22c7d8830f76b996ca04. 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/QZDA52126613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd503ee6c0223867dbd41546c9c93157205f48bd978c30af37d5ce9fea1a95a00. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:11:52Z), 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/QZDA52126615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae3fa53671e4e9ab45ce96bf810ad41c68a173b1af26c5442c88464ac495d8d. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZDA52126616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c92e7d1eead4b8fd864b040cdbc3d806b88112f8c085ca72e47bb648b5f4d0. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/QZDA52126617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213f383d4a87b01486e97a1078a0957cf375fd11c75c81fc8ced367f925fbeb2. 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/QZDA52126618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2581610e78cda88cc3637a5f42d43bb7b223519739a85ab85a50b263ad1ea4. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZDA52126619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d53b4ffe69c4e8b71b79ffa7d509fe687e8e0e25322724558b70f38e1f899b1. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:01:38Z), 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/QZDA52126620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5914c1b10f3b8f67af0b9b56e943afc49afe8a032d5340588dea838d393794. 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/QZDA52126621.
Telugu Nursery Rhymes For Children, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19f003050ac80ce563ffa25a4aad4ba6bd3ddfa3a67bcc8b690efa1a8dbde1d. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QZDA82175534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edac37473b514ebbf1417c925c60bae4df987e3848b6608bb9eef813315cd69. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDA82175540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ce70129d9db098e21cd200714ce49d91ef305873400593597e4af2d7cd2c05. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:13:50Z), 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/QZDA82175541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f86938ddb67966c42ab3f6d902d9051c2407e5d1ddf6f6c6eb9ab5d55cf2aa. 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/QZDA82175542.
Telugu Nursery Rhymes for Children, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f074a53f1ad9bbfbd13f3425ad2b3976b8964a2d460a4af30b6d1638a90487. 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/QZES52108698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30d8901889ec5919760ac9015aa727e1536df0a260f3ed7aa653865bb8ed0af. 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/QZES52108701.
Telugu Nursery Rhymes for Children, Vol. 5
Baby Ronnie Nursery Rhymes in Telugu for Children, Vol. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ab90e14d09d59afb5b86f40a86581b8bc25d92bef0bc96e804d627567af23c. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZES52173128.
Hindi Nursery Rhymes for Children, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00f81963af8962032c0d6d0cfe522efd31deb3f0f95e2176910d53428375e5c. 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/QZES62111897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2c368777040d740085a1b78fb4c8cf22b522f72dc72cc1053a237bc8e461a5. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZES62111910.
Hindi Nursery Rhymes for Children, Vol. 2
Hindi Nursery Rhymes for Children, Vol. 4
Baby Ronnie Nursery Rhymes in Hindi for Children, Vol. 5
Hindi Nursery Rhymes For Children, Vol. 3
Baby Ronnie Nursery Rhymes for Kids, Vol. 15
Baby Ronnie Nursery Rhymes for Kids, Vol. 16
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce34be2e44f605544c65ebcf70252f04a05cd5a0ec7424f26f2eb144ad9b69f. 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/QZHN72114458.
Baby Ronnie Nursery Rhymes for Kids, Vol. 18
Baby Ronnie Nursery Rhymes for Kids, Vol. 17
Baby Ronnie Nursery Rhymes for Kids, Vol. 19
Baby Ronnie Nursery Rhymes for Kids, Vol. 20
Baby Ronnie Nursery Rhymes for Kids, Vol. 22
Baby Ronnie Nursery Rhymes for Kids, Vol. 21
Baby Ronnie Nursery Rhymes for Kids, Vol. 23
Zool Babies Nursery Rhymes for Kids, Vol. 24
Zool Babies Nursery Rhymes for Kids, Vol. 25
Zool Babies Nursery Rhymes for Kids, Vol. 26
Zool Babies Nursery Rhymes for Kids, Vol. 27
Zool Babies Nursery Rhymes for Kids, Vol. 29
Zool Babies Nursery Rhymes for Kids, Vol. 30
Zool Babies Nursery Rhymes for Kids, Vol. 32
Zool Babies Nursery Rhymes for Kids, Vol. 31
Zool Babies Nursery Rhymes for Kids, Vol. 33
Zool Babies Nursery Rhymes for Kids, Vol. 34
Zool Babies Nursery Rhymes for Kids, Vol. 35
Zool Babies Nursery Rhymes for Kids, Vol. 28
Demu Gola Nursery Rhymes for Kids, Vol. 38
Demu Gola Nursery Rhymes for Kids, Vol. 37
Zool Babies Nursery Rhymes for Kids, Vol. 36
Demu Gola Nursery Rhymes for Kids, Vol. 39
Demu Gola Nursery Rhymes for Kids, Vol. 40
Classic Nursery Rhymes for Kids, Vol. 42
Classic Nursery Rhymes for Kids, Vol. 46
Telugu Nursery Rhymes for Children, Vol. 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e9689346bec5ed33aadd1786874fa03a1eede38743daefcf589ee83c87d757. 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/QZMEP2181030.
Classic Nursery Rhymes for Kids, Vol. 45
Classic Nursery Rhymes for Kids, Vol. 43
Classic Nursery Rhymes for Kids, Vol. 44
Classic Nursery Rhymes for Kids, Vol. 47
Classic Nursery Rhymes for Kids, Vol. 48
Classic Nursery Rhymes for Kids, Vol. 49
Classic Nursery Rhymes for Kids, Vol. 50
Baby Ronnie Nursery Rhymes for Kids, Vol. 52
Baby Ronnie Nursery Rhymes for Kids, Vol. 53
Hindi Nursery Rhymes for Children, Vol. 6
Telugu Nursery Rhymes for Children, Vol. 8
Classic Nursery Rhymes for Kids, Vol. 55
Classic Nursery Rhymes for Kids, Vol. 56
Baby Ronnie Nursery Rhymes for Kids, Vol. 57
Telugu Nursery Rhymes for Children, Vol. 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed12a6e399fe3ce81c70d54f1cfcd745a93060c9916d8100fe4575c183968ae. 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/QZDA82234839.
Zool Babies Nursery Rhymes for Kids, Vol. 58
Zool Babies Nursery Rhymes for Kids, Vol. 59
Baby Ronnie Nursery Rhymes for Kids, Vol. 60
Classic Nursery Rhymes For Kids, Vol. 61
Classic Nursery Rhymes For Kids, Vol. 62
Classic Nursery Rhymes For Kids, Vol. 63
Classic Nursery Rhymes For Kids, Vol. 64
Classic Nursery Rhymes For Kids, Vol. 65
Classic Nursery Rhymes For Kids, Vol. 66
English Nursery Rhymes For Kids, Vol. 67
English Nursery Rhymes For Kids, Vol. 68
English Nursery Rhymes For Kids, Vol. 69
English Nursery Rhymes For Kids, Vol. 70
English Nursery Rhymes For Kids, Vol. 71
English Nursery Rhymes For Kids, Vol. 72
English Nursery Rhymes For Kids, Vol. 73
English Nursery Rhymes For Kids, Vol. 74
English Nursery Rhymes For Kids, Vol. 75
Halloween Nursery Songs For Kids, Vol. 76
Baby Ronnie Nursery Rhymes For Kids, Vol. 78
Spanish Nursery Rhymes for Kids, Vol. 79
Zool Babies Spanish Rhymes for Kids, Vol. 80
Spanish Nursery Rhymes For Kids, Vol. 81
Spanish Nursery Rhymes For Kids, Vol. 82
Zool Babies Spanish Rhymes for Kids, Vol. 83
Spanish Nursery Rhymes For Kids, Vol. 84
Spanish Nursery Rhymes For Kids, Vol. 85
Spanish Nursery Rhymes For Kids, Vol. 86
Zool Babies Spanish Nursery Rhymes For Kids, Vol. 87
Zool Babies Spanish Nursery Rhymes For Kids, Vol. 88
Zool Babies Spanish Nursery Rhymes For Kids, Vol. 89
Zool Babies Spanish Nursery Rhymes For Kids, Vol. 90
Zool Babies Spanish Nursery Rhymes For Kids, Vol. 91
Christmas Nursery Songs For Kids, Vol. 92
English Nursery Rhymes For Kids, Vol. 93
English Nursery Rhymes For Kids, Vol. 94
Classic Nursery Rhymes For Kids, Vol. 96
Classic Nursery Rhymes For Kids, Vol. 97
Classic Nursery Rhymes For Kids, Vol. 99