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 0x41c97934756f63924a044300602c8a3a74b51d23838ed128a9fbe5da9ec226c4. 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/10fd381d-109f-4468-9c1d-34c09e9ea6ab.json and https://artists.proofprofile.net/proofs/artist/10fd381d-109f-4468-9c1d-34c09e9ea6ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Best Songs of All Time in Sleep Mode, 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 0x086f37e0a5e59e0432241bf83bba832cc68a93783e6e39202cb54eba5ab604c0. 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/BRITK1601216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79bf62845223bf6f369233a5faf5c84bf46ea7db78c1f39a077a033260158fd8. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:39:20Z), 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/BRITK1601183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa093f3c90daf843cdd6c079f397d016c0da8bc9e2ffc1f9d52c00673854182b2. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:28:13Z), 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/BRITK1601279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea8497e3ad8395b4252afba10ab9e11f88c7327dab5e6f912dea5f697ef9293. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BRITK1601280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b4b08f71783dd9b9fbc2e4f55c51e8ee27eedd17692be4a371d2bc3211dad7. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:54:02Z), 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/BRITK1601281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb5e6fff18067b5248571cce5fc6bd3451ca76f52ec290cb30771baa38f68e8. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/BRITK1601290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2702094cfed6554f5c585917e9a9edb0a654b5528d81d070be2c2195b171fb33. 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/BRITK1601293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae0ad856217228f986e3ced9ca8e77ee20e0e826d994944b791a1b400b8425f. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/BRITK1601294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c319daf69ac4146e187e7cb3a96d64ab1dd98c781d2b6bf1ad7a8441e43536b. 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/BRITK1601300.
Sleep Music Collection: Piano Covers, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3aa84a67562c7448ea59382ec3fc0ce979ea1998d1e1aa80ee5fb8c291b452. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/BRITK1601598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56e9cfc9fddf09086ec254fc77de1899f4520f6c8303e5ed96793c2e1025b90. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/BRITK1601599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced682426085b6f6ab0bff7e639ceb4a8553dbc4d44b6956c6a137c4ca262a03. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/BRITK1601600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8aa125c9ea099aa0efa5082ad715e22ef7b4869d56164ba991e5f1788342eb4. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:16:46Z), 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/BRITK1601601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae24e1a8e6225e543c8d638dac7f021b4fef298e2de6f1e960e2790a300ecba. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:48:43Z), 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/BRITK1601602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4f702ad7c558c5787d1c4b330a296c6f421e11adb5e49e653b510e47d1e7b6. 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/BRITK1601603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098b154643c70c3c7622536cb34a4ce6e6ec0c7d10fb3ae46f3cc7fb6fc25dce. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:03:52Z), 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/BRITK1601604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d9156d32e96d86dc43ae26b02234aecd55ea6c35c25bcec20261764365d344. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BRITK1601605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd40bb057284ca3c1c912cdbd710b00770f1b4fef6873cbe5ef18139e970639. 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/BRITK1601606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b7ac948300ecadde15c6bbb6e036d687b42138b2697b83120034cba890f541. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/BRITK1601607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003b14fcdfd1383c03ab36b3a172cdc42efa51bc1361dab50b69a5035b521a56. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:25:38Z), 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/BRITK1601608.
Another Brick in the Wall - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffdfffaea357c693e84b30f3dce00e992c4f7d1a38700d146603702717e90a5. 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/BRITK1601204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628393e76b35e8ce59db2c32c71b7399aa0c1a242147ea2efb4df86780ec4dd5. 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/BRITK1601610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770fde5ad45fc7afa6dfca953bccdb669b22569bee15ed45293249a5408fa3f4. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/BRITK1601193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1ef1cd48097dcb4bff96f5f67bf904b834ba8a1abd57c7878c7cdf23e95716. 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/BRITK1601203.
Sleep Music Collection: Piano Covers, Vol. 2
Can't Help Falling in Love - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b638ea36e6b227c34e04d20dc1a953484b44c6ccc6235f7f08e33ba811ce8e8. 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/BRITK1700836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6101745bac7e890414be501ca302e480d53fbae39995905f4ca97d06ebb1c2b. 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/BRITK1701135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff5e20c5dea93ba13f07e8416164b8d0569a648dd342ab09543f7b17f58ff25. 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/BRITK1701138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fef420d0d95f8642b4438ef34043f43bcd856f53799a3edca613bc8416fc70. 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/BRITK1701139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22446218ff5121a878a28205f53b7412a8f93d0c68daafde1255d146427357f. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/BRITK1601613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea8497e3ad8395b4252afba10ab9e11f88c7327dab5e6f912dea5f697ef9293. Chain 2 (Bitcoin): anchored in block 957540 (2026-07-11T08:19:50Z), 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/BRITK1601280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2f55ec9a9dcdc9f0e5860ace263f89edb82e5fe0eb6ba1a7927b2a4ae2e4ac. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/BRITK1601302.
Piano Covers: 20th Century Masterworks, Vol. 2
Acoustic Covers: Pop Ballads on the Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb883cd03c626885d17cff89197eae866a391ee62226bf4235d573639bbfddd85. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:00:07Z), 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/BRITK1801316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c71584ba7388664fbdd7bcf1533f088553509ea121ef064a6381c4a872f891a. 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/BRITK1801320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a479dad9f86a584f3600486b11bbae9c00a08c6fd694a06edceef7fb7e8608. 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/BRITK1701131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2232b072f7eec85fb44e6673d7b41756d3dcf203e339c21bbc259d158a9b299. 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/BRITK0900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4259f81880819544446774d08b371ce6898ea679f49fcf82810920f91907754. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMBZ92328407.