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 0x9c829f55d4a2f0a8bc65a33d99450d33583a58bbc4efd14d261c2b90d962169d. 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/286ffcae-41b3-4b5d-a422-f72e18746124.json and https://artists.proofprofile.net/proofs/artist/286ffcae-41b3-4b5d-a422-f72e18746124.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 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 0x62f50e9a65029019313640d049eed926b13ada424e1c94d6f17ad6f167f7b706. 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/GX89G2217331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7802396dad4475607913752afc827360c9fef4e2d2970a972526d6efa4b0e9. 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/GX89G2217275.
tálcunnana dëhajma tun dejl bënatsë abcul’han dlhenic ëlh inagat, jahadlhë adrhasha indauzglën nu dlhevusao ibajngra nava líeshtamhan ëf novejhan conetc danëctc qin, ëf tu dlhicadëtrhënna bë ablhundrhaba judjenan alhëtangrasë shidandlhamësë inqom
mã Héshiva õn dahh Khata trhândlha vand ëfd datnen Aghen Ecíës drhãtdlhan savd
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b4dc817632786949242089ddc323b6426ff19e2f87c85c63292acb29420fc2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GX89G2217149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023c1827874dfdf6dc461cad5b7d1a738efddc046b013971d01cc49a194c954f. 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/GX89G2231584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee584f8f1a8df6a17841e6752f573e866b68b4b19e79d83c20d564b5b2429606. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/GX89G2221802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c119f26f65d8dfcd70a3914576675cda73d642089100be6f3a02d1f9ad691ef. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/GX89G2371582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c972396021c5241729f87e58f7995c5ec6b757166f5e2189e53cb8918cdd2f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GX89G2346893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956039bba2366ce1fdfcefed821a76a0f9c1ade94ab593a799f50d859474f8ce. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/GX3HH2302833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ad467476cb94ce4ada6f694fc5ce935280a85a51218281e621a2ac2a17fc78. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/GX3HH2355951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ee777ff937c892e1c7119942bd1b6c4709b62ab9b9f25e38770cc3dfab1969. 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/GX4R52361993.
§ºanΩë aglivajsamë cá nëlh¶iha i eddana pi¶e
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71d29a4e5575c113f228dd186cd08b22316bc2a31d0288ff565bee2b6244aea. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/GXBDS2383307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd05ffa014af839d913e5b14bfe10ef0b116fde938cbe19e89166c61870bdd6a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GXBDS2300695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1619c744ae2c790fd7d7bf74d2e4f037a77f94d3cfc6587c821c60484a67899e. 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/GX5MX2460720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fb95bd13e4f2d01457216ec282c98e20c54635d6c700abf8f251ed7d10aff9. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GX5MX2424792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0c359db4ebd5e1e845d64a1b3e59e8100a8b65be054c35d6f5467ec38ede05. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GX5MX2430591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55ca222f1ba23404cfe8e725c4f1a150c6ecb8e6722da824afca4162ca2d565. 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/GX5MX2486922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0134b3e42809b780fc87f34cdb2e40cfb6148e194881ca0f4edc68e95f5867d9. 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/GX5MX2402579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa548f0a3c20a19360d22d7b02b8b00280ff1ff5926c4986567471d824940a08a. 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/GX5MX2434172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9deb4b046a0b9ba2cb47879e6c5289f1ac53de9ec7f043dba545ac774f5d74. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/GX5MX2439143.
faj den En​Ω​ë​ton​ë​ghappan nvona T​ó​varba d​ë​hajnva ëfpalte∫ eh y​ë​n​á​º​£​les §an​ë​nbe cetmac eh den l​é​hams selb'​º​e n​ê​bam'o​∫​n​ë​b ◊u​∫​an d​‡​é​f§
den cetna ya fënha Tóvar’haΩaj ë∫ qamëdjeni§
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d841301b45917a90b3c59d5b9f30746ff9a7352a90260a431d369ed9f51d48. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GXFHP2496733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c11d1677253d1c32d410d3d929ca477ba7376214887277f57d490ae83924d3e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GXFHP2481912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfb7105849224eae18a44c918e5a0e31f6076a6a570b5963e113b6515e323a4. 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/GXFHP2453733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913616767414d8880723466f979e6cd1e7ff35bb19f074d43bd6fc2b345e0a26. 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/GXFHP2436518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30b45d972450ca4e1c2bc2ae5f4d0c6923fa41b4a33deb7fd945f761ece79ff. 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/GX8LD2552455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97aa3738e706ae6a3fbcfd75779ba56d8d9aa82b31cc7e84b51363043da7965. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/GX8LD2586426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15598ebcff090117039945237a4f61f49f6d8192217c644cf0c1e9fe7656d8c1. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/GX8LD2541472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3ffed0ff20de9afcdc411e6e6aea32ce56313401c69ccb0919ffb511040799. 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/GX8LD2536791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62411ebbd2cc01ef59456a2e348b437d5f4c0d2f8394187be05587fe960f12f0. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/GX8LD2560179.
ducel ëf ∂acet'asde§ den alëcaáhabna ë∫ igatenamëc. já sjaboj. já qá§mëna. ëmat'alsob nimëde eh enΩëcunnab nipi¶e
sjabajΩ mëdeh onvac ë∫. jenu jecanctan ¶ën'ab
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fe3b33b0969994c14ef3616823f81aeb7013f60b23fc80c514856a70fb6f46. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GX8LD2533015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b65da60c7b78099e20e7887ef1da9b05d4df9e9c01b5c6496a54452065cfdb. 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/GX8LD2547643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fe8f9eecab3e6ff167993cec86fc77cf3e4da90793e6596fc52336577ef956. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/GX8LD2555787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2903caac0c26435707c6f9eb69d410459117053015ee600d659f5872f6e85695. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GX8LD2518894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ab4ba83ba1f304cbeb950425ae2e92525ff6197ee7d5b8878f077f7fe7843e. 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/GX8LD2574898.
di nido jad - ◊untwan law¶ur dëhajt◊ejn - a∫ëtana lín bë
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7b586a90f7c19daccdc96ad62c4122b40402711ea3e95f193bebb090cbd60a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GX5MX2529723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb956a63de9fb8337b3ed30e00d42501811108d7ea8618b07ec6f6fec9fb68577. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/GX5MX2501165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfca7e136a8db0ae3b381d0fc98e0bd63d45fdd89b609c7e37e0dcbca44dd21. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/GXBDS2517087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126bac1fe03027ad4479dc40bd7aed196d0b2931969175a2e7c7c0403381f733. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/GXBDS2586740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1424de79df9eb73998786ff093ae5964451b9608964c1e9d827bc21d62b2c60. 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/GXBDS2560391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a31859a9525146ba4012cd42551e2daae95515daa6f3873e89bcc43c7117a0. 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/GXBDS2555435.