The Presidents Of The United States Of America
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 0xdc5e9d44d7969a4cdb833e8603181161e89a3484133ac86e117aaf05e99ae431. 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/94fe596f-abc4-49ef-88dc-f2d83f9ba805.json and https://artists.proofprofile.net/proofs/artist/94fe596f-abc4-49ef-88dc-f2d83f9ba805.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Presidents of The United States of America: Ten Year Super Bonus Special Anniversary Edition
The Presidents Of The United States Of America (10 Year Anniversary Edition)
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 0xd0cd852bba547419fb05956145ce12f8709dbd685d817079a647e80ffb60a8e1. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/US35G0400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5008979985e1ca01cdeca17c4c4232de8501cfe03175812a480c47ce0d49d1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USSM19603296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0272953d1a5842f4bf0f09fe39c92e026f9f6270acb8217534912e17db15644. 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/USSM19603297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cb3e9fc1c687742a2c0e294c0d7ab5e08c43e439070a9159e0c57569f81724. 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/USSM19703755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae4fd380a836e529b6bb8a151e6af21afa1889a90d5ec9ae1d1641263c912f4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USSM19703754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e0a39179bcdd71882b4e9041b4966a50cda47e78b76f37c378511e798979d6. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:07:25Z), 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/USSM19605451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57dbed27081e5a7588bcfbfa01ea68f34fe5723e81cbb3ff742193a203bb51e6. 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/USSM19703757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc3c7281d02929a64e6512b9255138c67fffa1d6fcb56de5ffda1055f7fd647. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/USSM19703756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989157cdb43a8ed0da0e2cebfa622150110e9f681e0672ba38f88910422552b6. 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/USSM19603351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac72a3d4bfb0253aaaee4e2a9a579ead0b1347b4571af8ca4031476b2b364830. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USSM19605573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b906d5cfd32fe8b9ccb39a18dfa0fa7b1bf304b6859f1315f863b1adea4559. 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/USSM19605571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943077d134db0c5e84aff95890c39d5c118df11414049115d5a180cc9856c070. 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/USSM19605572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd43dfddda9c73dd8b8f58bf15c0f3bd88d20457a4fc39662c858311c67815de. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USSM19605577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703d91251521111979381cdfce3e7c620caa6d34c592733b9ec2cb284ad32717. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:59:05Z), 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/US35G0400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8968a3039579564b75176321140649f473ced9f8a4fe1821331dafa40c44208e. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:23:42Z), 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/US35G0400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c51d7765cd4381d6c2ee155fa9a8690633f33e55a8d67adf0bd6ea3eaaa71f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US35G0400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f56b7957adc9d4121280c32f4460759badfd953283063901e691208158c9e0. 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/US35G0400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78a2eaa4aa289697da4fe4b4fe7cc6daccc7061ed4e70451da89c61c7125b52. 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/US35G0400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539838ea00843b5ff9b91653c230a6390fab2dbcaf6883fab81b23aae70934a7. 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/US35G0400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f6f93e84860e031e3cc1ade6a74f7e8270379fbce6825c252c7e7ed712803f. 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/US35G0400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89c4841e7f245ab1436b366ef22e9b4ee36e45ead1a8f78c1867170e5550a05. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/US35G0400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cb9c6d812c7ab4afd073a8f55772f1045f6b699e04e11ba46b1146acb66546. 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/US35G0400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551e91e6f155f690bfa819d03bf2c8396a9fd0dc2aec2e905186d8613b4bb119. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:10:50Z), 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/US35G0400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c13e454c57618eed680048f99bf5b505a27b328ee9caa30b6b3ec3f1d2ba432. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:51:31Z), 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/US35G0400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5915eba6ac2d6a2eaae241db184c71a5585ca218910b049027b3694c19e592e0. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:42:24Z), 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/US35G0400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b5b79e9bb9b828430df967bb10d55545c3ae5c84b8f962fe7efd88433aa7c4. 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/US35G0400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07774bfeaa534829eefeb86219ec77b5eeb75236ba59f2a428480f8683dd1590. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/US35G0400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f83c8a0c38586287884f39d6047cea37aaf87fbabfb9342c996cae473fa5a40. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/US35G0400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e932de0ce6e4f693f5103ab20c7f3645a68dc96dde5156da12733e938ddc2f1. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/USTN10700695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8f8e48e6501e5f6555c9fa7bff317c2cf00410887eae5907b40e21fdf29d3b. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/USTN10700688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564c6abb9b51b7a33c20d484c1ebec76a3df92b29135916e78010c88ebbe841f. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USTN10700692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b70978668e4d9d8dd1b9a57e28e8f14742e101287356d7d86887a2768ec1e4. 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/USTN10700698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb694b66360c154ce48d3b7bae2bb5b09ae17eb9d8c823bd7272a5f64f9898282. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/USTN10700700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d5b3229fa6be809d8085802f3cffac47ddc2358effb35c3ef3526241db591c. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/USTN10700689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc8eadd87fa7fed70a309dd87c64c547cb9f6226701fa78ac957a1f2fcea9a5. 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/QMBZ91346520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8377719746235234dd46250e18989450bd7d0142d68be37eb186507373b5e189. 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/QMBZ91346523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba2f783c9155511e63543c43cdcbd282563f8981fc080b79b390aad6236bf96. 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/QMBZ91346524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0e5d78ec7b21b944e9cbf84ee1b9f48d20a4ae80311180937cce109cb84a64. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMBZ91346525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410e7f4b2dc4eb85b4f35b7809380d5571682f0e1a276741bfb03ae132c99f8e. 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/QMBZ91346528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42452b2de8b4168d9ca5d3be7161b4d87d4e4a5060c1ad375f72950fca724b8. 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/QMBZ91346529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437cc4bc7ffa5bc4308ac85a1b5e738d97bde7232ee65e2572e323d2efada79c. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QMBZ91346530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d53246ae98d69fee248ef4bf4e54f6c596c0a80eccc159cef4163bbb02d24f2. 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/QMBZ91346531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b3e149dbd77c809d9be0832acd8cad5af7b0873602567e1d7157a2fbc47f19. 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/QMBZ91346533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ab478c2f7c0377dd7d498bc4ec99642dd2fe57cb67b962d069c3d3f73d4f1f. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZ5AB2330038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa990476aee8cd35104a3a3f04118f04412ae02879fa74cc820c7827be44b1582. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZ5AB2330041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64dc6d6580845550970e9c9d8c237793ca4c77f057a7e265f6e302b3522ba7f0. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZ5AB2330042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439c159061b378febf8548b5257d4c8acf7202e6cca222529bc0409dd7b33a09. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:06:49Z), 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/QZ5AB2330043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abaf6b799be1afbf94a65966b8b211cb692e75e8552b5d2265e5947223cadb8. 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/QZ5AB2330044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae869a9c0b376bc5acd3599fad8681068fd8f4892efc03d63a65c11dfc057786. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:01:50Z), 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/QZ5AB2330045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f13d34b4bd70696e4b86b99b4466a580eb8649e5a7fef99a288a60752541b53. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:03:52Z), 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/QZ5AB2330046.
Jan Douwe Kroeske presents: The Best of 10 Years 2 Meter Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabd88af9ceaedd49136821f79162ee2796f82557561ddc0e062898de3385249. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NL07C1700812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e9a76c191ed1dd9f29e8adb0c3b8c6107af2239b959437840985beaa36ea69. 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/US9FR1110158.
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
Lump (Live, Acoustic in Studio at 107.7 the End Seattle)
The Glamour & The Squalor (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6e20021bae9099350095e9230bbd89f2402080f2ee564420fcf6177ba03fca. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/USLS51790504.