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 0x62bdb98b35650c25a3802ba40a4992530d17c2c3f6bfaad7785e082849b3551b. 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/18a4e286-0a19-4cd4-a31e-16f9ffb6028e.json and https://artists.proofprofile.net/proofs/artist/18a4e286-0a19-4cd4-a31e-16f9ffb6028e.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 0x3898a6c45da98184f1e3c2f39fa4070320ff136916510127361559eb74b87305. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:22:52Z), 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/PYA041707177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a6ca77704177f63cb7d859fdb2d721f547b3f1595f0a8330828efa2d7feb21. 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/QM6N21465448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3fd5142e49ad7e8c5cb8f880cd466d818355a689714287be8918dd8b0ae871. 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/PYA041707168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6be04536cefe562faf9062595b941c354a26e28ff443865d68ec5314927ee8. 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/QM6N21446537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1861da0ff216266715fbece5fd93869d9e0d4a9d377a654cd49bb19566c6253. 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/QM6N21446540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b71112d32b57e459643fd24d569290b30873bad8d0a49897321c819d662877. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:05:31Z), 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/QM6N21446542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9adeaed4639160b8ebf160064e4d6d3b761b22ae26435e9ef7f8f00dead8893a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:04:22Z), 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/QM6N21446543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11962a82894523d8ca03423af4411ab75d6d2d651ea83efae42dd2f5df3b1c5. 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/QM6N21446536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4bc2463a8664a219fb5f4b3bc12bb302d668fa2ca191da96eba2f6b4e24d6e. 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/QM6N21446538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43449e92af25a8991c5e2f399d09f6c5078e563722b99b4ab2c2a1c3e0d44612. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:13:54Z), 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/QM6N21446539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fc18456e4db29f9f61afae03dfee94a78e9e25eecb090051809cd50479d336. 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/QM6N21446541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbaeb957d6f43ff132778fe499fc48f54f43ee795e5121190ad9f692c07c9635. 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/SE6HN2177347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf712e84aa634417b90bbffaab3ce6c71b62815870e6be1befb8c21d14debc89d. 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/SE6A92144873.
20 Grandes Exitos, 35 años de Trayectoria con la Musica Folklórica Paraguaya
Grandes Éxitos - 1 hora Música Paraguaya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0fbff33f8123019c1a60e706b7631419ee6512527ab0522d5636999b7cbf47. 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/PYC842508201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc603ddd4ab9c7437b8fde38c6ee796473f708950f0e6e3b9b289f3443c07ddb3. 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/PYC842508205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c403a322b6b43fc573f4b72396b4241089f1113966599562288ceaf12e4707. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QM6N21463377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5cfb053a5407c7eb0d7b72e4a6cc333af3af54a23d60a52eef933c3e8b7f4e. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QM6N21463378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e1b1f119a13187b532b8d24c4546fd706d9019283ab42e89348f5de35737f8. Chain 2 (Bitcoin): anchored in block 957640 (2026-07-12T02:27:45Z), 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/QM6N21463379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1025c8292fe9a53cb26009d312603996b3340b2f3e6774a5d1017317913409a0. 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/QM6N21463383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa943420f18d03f9131a837421a246a96b02356ee12e9f1e4839faebaea874e96. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QM6N21463387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88dba6599dace340588a3f6df0d79ec455064913f3c0b9b37c01d13a3db152b5. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/QM6N21465449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe71b92d22e7836d8d834a676e1a379c74987fc38f81835104dc41c531119a4c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:19:23Z), 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/QM6N21465452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefaed16f99016b3f0eea648aa4a42e494af80d3226b25fac898484fbbfe5ecc4. 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/QM6N21465455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c6cd5b902b8d339dd0222821784b8d262345e235f7cc04bdb7ead8cab7e09d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:33:23Z), 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/QM6N21465456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709772f9fab616d0783f4a60cacb7eb248f1eed8d311ba45b79c44254618486d. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:09:16Z), 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/QM6N21465458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7833cdb409ff1a5e627f503e4e11c087d369cf34cf109bd741f72374df6e9f57. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/QM6N21465462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf00d035caa428a3fdc7a5733db1b8749b95299d5c7b75d45f08806d7e0cc786. 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/QMDA61549424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87e17e2af40e15b13fc862b84cda5bcbf5adfbf73a344e5692267c066248721. 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/QMDA61549428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c6adf768f6f0aa6a79a66c571424b7666b2453e76f5428a2d6c70c228482fa. 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/SE6A92144860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16169b476986982caf593912eb664741815c582263f9a49b82fc4b67bbcf786. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/SE6A92144861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbceded2de8948d1f822d5212c0968bc8b2fc943321c8487576e2f220eb1bee42. 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/SE6A92144864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf712e84aa634417b90bbffaab3ce6c71b62815870e6be1befb8c21d14debc89d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/SE6A92144873.