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 0xc9ae137b65e54e31fb4d9925d546b40bc4b57796e08a3dfff69d98fbd444ed9e. Chain 2 (Bitcoin): anchored in block 953717 (2026-06-15T01:05:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8882d691-182f-4b8d-ab8a-8d733d609da8.json and https://artists.proofprofile.net/proofs/artist/8882d691-182f-4b8d-ab8a-8d733d609da8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bicentennial Series-Battle Of New Orleans
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 0x4fb9bd3d7ccc5ddabd20f34588bb9c8b7be3d787ed8df962fcea0af4d9e39d02. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/US6PD2300751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecb0d3bd098c884b0936e2462817a92b95b80cf79b47fa35ae1fb7d2d6984e9. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/US3L61577931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ed4988be8fdebb853382e9aeb8cb90bc43d90f16b41d3a0a7393e841cef00b. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/US3L61577932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f678d0db717d950b77ed4ae754dce3a2baad5e890e900abeefadabe8cd6723. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US3L61577933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cfaf5e2e4c9b4ca6914c16568b546b735dcbb247a1135ee99dc3f537a14428. 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/US3L61577934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2d16f33ba4ae9659c37bbaca6e30e21ebfb5c7b546d4b6a9779991793e8679. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US3L61577936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9d724fcde069b19aaa2a1c1fc6af70da7307df16a3ac2d6265a70f8699b1d3. 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/US3L61577938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cc74ddbdcc1829f67a3ee2d36f9d1f4b0c2cb222fb2b1b7881658fef776124. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US3L61577939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe0a323845c47f19d38d55a15d6155af4430847317d6beadbe56ccc1ec0a069. 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/US3L61577940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3883fc9226d7b7cb86f5cdb7679d7cf55972d57b592cfc41ce7389fc8ffd5d50. 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/US3L61577941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ea1f7c0e0fa4404eaa3f174aaa9276f9d2f2fe406bd60bb56ff37f4134983d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/US3L61577942.
American Music: Traditional American Folk Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afa9b307f69346f52ce13b2a2e1bbec043fbd1e95ac1ccd87c95fafc243df14. 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/USCJA0606254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87de46f76183333bd6c1a8e2b7365af73c923e0acfa5524bb8934054eb8c80a. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USCJA0601668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b2ffbe5f14d7887ce36aa9a6c6e7758593c3eceaedf7840197f4704d8932ba. 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/USCJA0602495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cd8d0f234fe6924af2eeae35ae548eb5435209ff18181d2d0bf532d42fee3a. 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/USCJA0602489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838e051e394b0ea61699151739ee44b07b388a6346fe29ce01e41e23ec090dcc. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USCJA0606256.
Little Big Leagues: Music for Kids Who Love Baseball
Legendary: A Tribute to Jim Croce, Johnny Cash, and the Folk Music Tradition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7a6e847a76f802314d05406a70ac61e9b0b3007cdecd42932716ca6b5ce07a. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/USA371438995.
40 Songs from Movies, TV Shows, and Commercials
Anthology of Classic American Folk Songs
40 American Folk Classics for Thanksgiving Dinner
Tie the Knot Tunes Presents: Hill Country Wedding Folk Songs
Next Year in Jerusalem: Songs to Celebrate Passover
Easter Egg Hunt: 50 Children's Songs for Easter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a86605fdefac7365c64a50b5a80aef46a4afc449bec6a24167aa4cf60ad914. 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/USCJA0603194.
Do the Bunny Hop! 50 Songs to Delight Children of All Ages
Whistle-Stop Tour: 50 Must Have Songs for Presidents' Day
Fireside Folk: Classic American Favorites to Warm Your Winter
Chill Baby Steampunk: Folk Music for Playtime
At the Playground 50 Songs for Children of All Ages
30 Classic Folk Songs to Celebrate Earth Day