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 0xbffecf113eb3b289f96199d790a1e892709ceb7811cee19ef872724f750fb8e4. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8995a0c4-b896-46a5-b976-922beebc9fe4.json and https://artists.proofprofile.net/proofs/artist/8995a0c4-b896-46a5-b976-922beebc9fe4.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 0xfd07b582746f2a2b6cf9b74c2a09c4daf72934f80f93e77ddf9aefe082b33d60. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:34:46Z), 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/USDEI8203363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23597a58fc5d3b707d1051a5a5fa8c43f3d0ce6104f24ada7087cb7e0dceb53. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USA5W0403664.
America's Newest Praise & Worship Favorites, Vol. 2
America's 25 Favorite Praise & Worship Choruses
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d7c72f992428d00dfd5f2f8525ee8033bd3d64ec50e0a9ec6bbf6a59a638b0. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/HUAC61301026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ab3596a96c9340bdf49c2802328fd379d99f620fe2a5cfffc52174f30528c7. 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/HUAC61301027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611ede342ed1121bc5f3fed842a8027b017e0e7847b8f9a447300534866dff1a. 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/USA5W0404403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d999ac12e9d5ee75f15c8e298e087b4df789c883ca64ccf9eedbb3e9bd1cb6e. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USA5W0404404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ab7932ead4c2eb6b266c4dac9d643bbc913d330aae9b184bb384bf2e11a154. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:57:46Z), 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/USA5W0404405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57f254be8e419d6099aa6623ea92a40de5817ccad6638629b60646f9617b3a2. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T11:02:15Z), 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/USA5W0404407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec7b54c44e3d02c3b712f2c41e37588534163fc1663c916553755556bdb3517. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA5W0404408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7485dd6402b2aef1365fd21ebbe96110f51a30da0bbc933d6841d879007b0550. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:28:05Z), 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/USA5W0404409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abc48af08fbab5791ac7599705bdfa1229d49ae3bc2618c2361ee0f780930e9. 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/USA5W0404410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6432b05d1aab24a914bdb06504d0ca3277e5389e3c2f7e65ce4bc53556fb57c2. 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/USA5W0404411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425f7cf07b521501ba7ac5304b323db7525bbe57ff00cb3e8c587d25151c5c97. 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/USA5W0404412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396de45071c596cfbd61d7471be109ab0b8250719155de2ae656977ab5e7de3c. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/USA5W0404413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb002da05957eacbb1d5f21bccff55e70c9c56aabd61d748cc0a18e24aaf1bdca. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USA5W0404414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08edeb6d74e89e9e6f7b31b388293d9aef89f7e34c068bed43b5338136ab9ab3. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:00:17Z), 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/USA5W0404415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78083c230bb7c3d897d154a0e4925c0ba03ad96209bddfd71c6c7fd70a370af6. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:56:57Z), 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/USA5W0404416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccfea79e5a225ab40716dc10690ab74db9eefe1c5bddc5d48c9ad53782f2078. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USA5W0404417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3ecbb0ada522adda03313ef899c06225c7fef40e72aee8ebde81caae919e94. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USA5W0404418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31384c2dc5b78e0ffa93fb3fe182e5a3bc6e3b8d6fa14d337bccdc101dec0132. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/USA5W0404419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358fbbe032c181e67f4cb29432e651825e3d54fc35545ac90b0090f2766100c6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USA5W0404420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13dde35b1212af9d909e188a1f50f2422366219cf2bc89c29fb65ea807cafc2c. 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/USA5W0404421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111cdf69ee409f32698d482483f056988aa46010759217b7312e2d48817d01d2. 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/USA5W0404422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d866d26b492cf785bcc13f0f40d1f17d0d23ce58d39b5f4fc91a74a29a29bc. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USA5W0404423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6685e240e4d2ef9fc9a8ac67bd8dca9096f485e17f1c0e5b6042789dadb4c4eb. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/USA5W0404424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1bcb41ae7620d8b76916add2c397b9aaf1c440bdd2b6846d8487f785a248124. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/USA5W0404425.
Instrumental Praise Series: Great Is The Lord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a59572db52ab9c77881f3f44a35606f666e97f3c8590faf07e056d5710fef92. 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/USA5W0401156.
I Sing Praises To Your Name - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ec755676cda9370f39784b796a25dc5b279fc6d043dcc44f94502616623158. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/USA5W0401117.
Acoustic Worship - America's 25 Favorite Praise and Worship
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1951cbe77fec1b07337640bc118f9ee65eabbc761bb2de248b058355b5025b71. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USA5W0401089.
Smoky Mountain All-Time Greatest Hits, Vol. 1
America's 25 Favorite Old-Time Gospel Songs, Vol. 2
America's Newest Praise & Worship Favorites, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecef09d813ed96f9254bf67fb5d188d4a7d2034c9dbe698ebf9173a644ba397. 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/USA5W0403327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f0b866500ff487d650faadac4d3296ea95aff4a584f5618a85a87467bba738. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA5W0403330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937d8fcd7a2a61e9895db01b8310660176e01fe5409cf7a3dce3862195172bb5. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USA5W0403331.
Christmas The Phil Spector Way - A Festive Tribute To The Legendary Producer
Just Tracks: The Songs from Seussical Musical
Just Tracks: Sing the Hits of Linda Eder
Songs from Funny Girl & Funny Lady, Vol. 1
The Hits of the Righteous Brothers / Everly Brothers
Sing in the Style of Ella Fitzgerald: Songs of Irving Berlin, Vol. 1
Just Tracks: Eric Clapton and Phil Collins: Just Tracks (I Shot Sheriff)
The Hits of Frank Sinatra & Guests - The Duets
Just Tracks: Three Latin Kings (Ricky Martin, Marc Anthony and Enrique Iglesias)
Just Tracks: Songs in the Style of Michael Buble ‚Äì It‚Äôs His Time
The Hits of Al Jarreau / Jeffrey Osborne
Just Tracks: The Hits of Louis Armstrong and Jimmy Durante
Karaoke - Edited Length Kids Competition Hits Vol. 1
The Hits of Sammy Davis, Jr. & Anthony Newley
Just Tracks: The Songs of Andrea Bocelli
The Hits of Roberta Flack / Gladys Knight
The Hits of Lovin Spoonful and Three Dog Night
Just Tracks: Sing the Hits of Rod Stewart - What a Wonderful World, Vol 3
Just Tracks: Frank Sinatra - Sinatra Meets Riddle
Just Tracks: (Male Groups) Boys, Boys, Boys
Just Tracks: Noel - In the Style of Josh Groban
Just Tracks: Frank Sinatra - The Golden Years, Vol. 4
Just Tracks: Frank Sinatra - The Golden Years, Vol. 2
Just Tracks: Sing the Songs of Michael Buble - Sittin On a Rainbow
Hits of Sarah Brightman, Linda Eder and Charlotte Church
Just Tracks: New York State of Mind - The Songs of Billy Joel
Just Tracks: Earth Wind and Fire, Al Green, And Jeffrey Osborne
Just Tracks: Sing the Hits of Frankie Laine, Tennessee E. Ford, Johnny Horton, And Johnnie Ray
Just Tracks: Michel Legrand, Irving Berlin and Tony Bennett
Just Tracks: Judy Garland, Peggy Lee & Doris Day
Just Tracks: Chess: From the International Musical
Just Tracks: Great Songs for All Singers (Male)
Just Tracks: Bette Midler Sings Rosemary Clooney
Hilary Duff and Friends... Breakaway Hits
The Hits of Marilyn Monroe and Peggy Lee
Just Tracks: To Gershwin With Love: Michael Feinstein
Autumn in New York - Love Songs to a City
Just Tracks: Celine Dion - The Hits of Celine Dion
Just Tracks: Best of Country Women, Vol. 2
Just Tracks: Hits of Mariah Carey - The Hits of Mariah Carey
Professional Background Sound Tracks: Broadway, Vol. 1
Just Tracks: Sing the Hits of Rodgers and Hammerstein Hits
The Hits of the Coasters and the Drifters
Ella First Lady of Song - Sing in the Style of Ella Fitzgerald
Just Tracks: The Music of Jule Styne - Let Me Entertain You
Just Tracks: Frank Sinatra - Soliloquy for Singers, Vol. 8
Just Tracks: Whitney Houston - The Hits of Whitney Houston
Ray Charles, Ben E. King, Mcphatter and Carter
Just Tracks: Frank Sinatra - The Golden Years, Vol. 1
Just Tracks: Sing the Songs Sinatra Sang
The Hits of These Are the Times, (R&B Male)
The Hits of Fleetwood Mac and Stevie Nicks
The Hits of Brian Mcknight and James Ingram
Just Tracks: Great Standards - Far Away Places
Just Tracks: Frank Sinatra - The Golden Years, Vol. 5
Sing the Songs of Diana Krall - Come Sing With Me
Just Tracks: New Movie Hits: Moulin Rouge/Shrek/I Am Sam/Ali/Kate & Leopold
Just Tracks: The Hits of Usher and R. Kelly
The Irving Berlin Songbook - In the Style of Ella Fitzgerald Vol. 2
The Hits of Lloyd Price / Chubby Checker
The Best Thing for You - Diana Krall, Vol. 2
Just Tracks: Sing in the Style of Billie Holiday
Just Tracks: Sing the Songs of Barry Manilow, Blue Velvet & Other 60's Classics
Just Tracks: Brian Mcknight and Boyz II Men
Just Tracks: Disney New Movies (Not Karaoke)
The Best Little Whorehouse in Texas / Will Rogers Follies
Daily Serenity: Music for Peaceful Relaxation
Soft Dreams: Peaceful Music for Baby Sleep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75ce3ce84033548f1a5850de3a7a091f1d9a9b17b9f03a4d618de7a8aa2a9f9. 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/HKD049800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c38a995528d03a8153615760bfe97dd6daba64eced2d536ceeaa8b1cb2edbb8. 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/HKD049800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbd27b763c36608a69d3279440c2cb34bc91b3763e2017947d1fb637e884d24. 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/HKD049800051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91154c14ead94620dea9506670374844523c547dffff920d3aeb3f485b6078c. 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/HKD049800059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0d9af82b60c50fc1c6a2558ec600cd2fa39f2c3e2c56e5968f1a029f4f171a. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/HKD049701038.
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 0x96e6717e9f1f8c9314e11752a706554d505a12792874684480fe330a59c1c7da. 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/HKD049701041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df240fd3f31b82c149f79d9e3a6662fd185af4d6768d3fa2a40da3e44f428b4. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/HKD049800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9372f843a5ebfdca778ef5ccc608fc7ceef190f79d164e77258d2d8fc11e7217. 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/HKD049800049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71a82bed6c864784be59d6c3d0ddae8e403741896148c12d47bced80f33e58e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/HKD049800054.