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 0xa0bddef2b616ed42d9230744cc5da2edc79b402e44b2cc58c1fbc660b780a3f7. 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/a024a9c5-848f-48e0-87a0-6d2fe54cf6fd.json and https://artists.proofprofile.net/proofs/artist/a024a9c5-848f-48e0-87a0-6d2fe54cf6fd.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 0xc46ed9cbc419903adc358122814df365f9e6182ead7caa1f79d6f49b42dfe0cf. 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/FR2X41885155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c844a55ceeb791b5c94d022314c36858f84c2435f3103a40bc9350b4061c8d. 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/FR10S1938593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90036bd51a378453930a3ff7061b86a8afbdd269797e1952056973589d6842dd. 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/FR2X41858067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5825b682efdd5a1d57691b21c28691440e2624d720f21956783fa06b2648caa7. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR96X1970902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226c6ce282f746f1d16ec8ce1d58c257c114f280020e2f3d94b6b1933315cb15. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/FRX201909216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf74197dcc6945cdd1e4df1052efcef2883755f98017808d05ba436e5d801169. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/FR10S2021969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ce2decc00a60d271d2d32a5f6b640c5ef545cff1baced9a21b6d96529078ca. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TH2DY2000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16b863cba0a983c0481f324680be405a0f0b6ab4cde17a84189160cf0614641. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/DGA072154647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16b863cba0a983c0481f324680be405a0f0b6ab4cde17a84189160cf0614641. 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/DGA072154647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7054e623f2cebc59da645d4b43c62b2df9a471a56bf15da6f92900714b12376c. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/DGA072188225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3984c58526612e096da2e740ed0536fec1634e884ba0db436a2fdd985772b31. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/FRX762144705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218ca1eca521250d7ac01ca35213d866960cf9b34160e91b9f3949180fbb57c3. 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/FRX282168002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35146032200854005194b8b67f346bcbb25fb61dcea1b4cf8a94dbe7058b12bf. 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/FR10S2270000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f66851e8615e816aff803cd788090c294001216e1808a181d6687186948099b. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/FR2X42221521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58db34da60805f85ae749bf0e04b2c99f5ffbe6b53967066b7c3b63c0de507f. 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/FR59R2264388.
ตั้งแต่วันนั้นที่เรามองดาว (Star)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09442f128e80b1f1d2362e34291b3c428ff27cc92f706c5114acab69d8f23617. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DGA0L2461422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c0bc8a0e30372ba66d8b49fdd9de93dcf0399791db4a20a514fd28129a5506. 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/DGA0R2449253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52319e448aba1839a668e10501b772de52ffd8f2f9fcbc990e9aa80fbfedab15. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/FR2X42535531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa21da1f93ebd286f8c5bbcd404929a3d32c0b543833733ef00b8067bcb1cd9. 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/FRX762522095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15becbfb658b9561af438ed6a5ea45b98282ac2491d1174df78a28bff83d224f. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/DGA052529522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf3eed9c2a9a987f31278a2a1e60ca705a200a8924a6138170b6b4a92cbb232. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/DGA052529523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cde6854a13c16eb5213c7608e33ea3185818bbec3ecb03a84e1b2575d2ad8bb. 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/DGA052529524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b28b955a271c2cf993f618c77a33bfc1b92d2cb320062bceb4d4a5595d7fa4f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:46:36Z), 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/DGA052529525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01efe261da872b67bdf90355a9e88c64e841b46b59e98176557da4ed4f395111. 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/FRX452566551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5fbdb76adf8d43ff56f4a358bfc54a78974d7a56366d7a4d66d086d3478066. 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/FRX872519126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197cddb122f69b0e09e6cd45e3347b7a90ccfb93efb4862143982e36ea8c9955. 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/DGA052529526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa21da1f93ebd286f8c5bbcd404929a3d32c0b543833733ef00b8067bcb1cd9. 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/FRX762522095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002ca560addda240d8a216c96fbcfa69ca9c038ca8339d714cea89d6b0d2ae8c. 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/DGA052529527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7ed6a4185ac67a6c914483284bb8fc3a5d2c23677a5f52c7920f947f2b9fd8. 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/DGA052529528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38eb759b256ba57f552de3ae91cc35113d011bffd5f816e37e44cfcb397c291b. 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/FR96X2569702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7dcac0c67fc7a105374360715574d8252e490468bb987bcf0906b781af85a8. 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/DGA052529529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73706b513340d8165d181e1dd6df412ec23de25edfc0fc53e5faebe8fcb8058a. 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/FR59R2575598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb73a45b977e6951a634c34c698efb3cd46236f688e3be18599005c9039690df. 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/DGA052529531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c65663941ea71100879242b6dad8df5830cf313896c75b5fe9a38bf79601fa. 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/DGA052529532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fddee592b49a4649d97653cb5e2fcea335c70d2f0368c78a9e75b17b368f6a. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:56:37Z), 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/FRX282581521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bcd166d1f5145af52a870398a61adc292ef57b174404987b9aae2912cbf48a. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:33:57Z), 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/DGA052529533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600892aeb9b9e805d18e87d97859f09759ed43688aee746a26d7057fdf5f1392. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THW092002161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03394e2e52bba15d3de0d4fa4269e45f55f978d15cd5b922f5f60ae012ec85d3. 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/THW092104717.
Ms. Molly (feat. 1Mill, Fiixd & Younggu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c7f117ec06bdb8460fbf0ad54671e7f43ab3a4957b79dc933650116e5279cd. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USUYG1324445.
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 0xd2f4ef89724c7329872ea323a415ce14f7d8b2a40348e0736282b39335f13bad. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FRX201844100.