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 0x56865983d21cd77a26a18f26bf30a726aaab350b7beffcdd5e78b2224ab41209. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4d120965-59f7-4429-8d12-899261c7e7e1.json and https://artists.proofprofile.net/proofs/artist/4d120965-59f7-4429-8d12-899261c7e7e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Il Katalicammello - 120 successi per la Baby Dance
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 0xe1f69265904505ceef1622fc35a3a76a192bd05939dd0effc9ce5b1d802f326f. 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/ITS040301190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8f41a8048613711de87bcebc82f0387449644688200485aee02a59655dae1a. 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/ITS041200242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31c9f5b7b05cf3da9d61f8036952dacb387fb6d74cfca9e4feb2f6fc9b219c1. 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/ITS040400776.
Il ballo di Simone (Stefan Benzatek Remix)
Buon San Valentino - 30 grandi successi d'amore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3407684874d25c2b91312cc27f4d006dbb15a177e31b8b0ed92d4e2dc9d67cda. 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/ITS040800246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccd478c9a467da6431734db8c385c204708722421c3abf3a9133c36ffa88072. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITZ010305092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2aac17ff3e8e83693e7e0c7dbfcb75f98101a7f75ad221c2acefba1fd66647. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITS040100903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a218299e842f2ca41ec36e639df184b86b5fc220a4c312280af013d676b8d55. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITS049900125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bb01b71dc270e10401c4eb02f1c9ad8924cb4f9681cc7cfeba62a416ccd524. 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/ITZ019900631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bf36c24305e27063f5713aa0e23a4946487626c5e63c99f0d2cb2329091c53. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITS040600718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e188b58a9212a0e73b8aa7b7c2f5e63d416e9eb32d7bd5e5c5a199dd56089ae. 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/ITS040700224.
50 Best Baby Songs, Vol. 1 (Favole, balli di gruppo, cartoni, classici e ninnananne)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a330b72636dd583052109564d9ef8779e5c328fe5f03b9fd2b9c0b2dc5b72f. 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/FR6V81232792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3670f9406ce2aec5e3182f1c436e46a6d5bb10af58ea470a7cdc674c3d4d0f35. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR6V81232819.
Penguin's game (Il ballo del pinguino) - Italian version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c7c107bd98e94aba6180eb6731203c8b025479d2b3f6fa4465c6ecc0649640. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FR6V81232821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5c7f1656ca2dac8e3ae46c7be90bf8e0fbdbdd735c3bcd302242719730d421. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FR6V81232822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa649aa82056be83ca17fdfc6553214c72184e666d26c47ee8139bb364b94121e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR6V81232828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ce9ac4ccaa7253c745036b8b29547f9ec81c71a494ece13e5cc4c3c7f0d1d5. 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/FR6V80299745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8536d5202184a7d14d750244719e0e370c4fef34134d7cd920a017f45a3cbd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITA581000287.