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 0xd0d089230ed4e447ab666f5cc5357036aa0a23100a166f6008539def987d80a9. 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/8b3f3a86-ab16-472e-97b5-1a23f3cc3409.json and https://artists.proofprofile.net/proofs/artist/8b3f3a86-ab16-472e-97b5-1a23f3cc3409.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 0xe0a054e56b7ac1d6cce911522ea519e5bfae98d5928b30da4e012cabef2d56f5. 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/KRRAR2204960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f01c489ee4164545826737973170a4ce03da76a9faa7d921d304464e668428. 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/KRRAR2204961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac7f0193d8469807bdc701a22864bd31e2e0d02b604063007060845f5b92232. 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/KRRAR2204962.
Battement Tendu 1 (medium)- La Cumparsita
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fc9f2bc8d4a66fe1b20c91311db264b8a34395bb13341d0fbfb58d48f6563c. 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/KRRAR2204964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7eab686db7148f2219006f0eeb6ec0831a6b369697a799be00a759922be650. 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/KRRAR2204965.
Battement Degage -The Bridge on The River Kwain March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c500ebfe7a5766f2682dcdf406b909ec8cd9bbdef52b54cdb4bd88eb30b0b9d. 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/KRRAR2204968.
Rond de jambe a terre - Die Fledermaus Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a453fe09dd49f18626d10050675d8667e970a8c576091e451090b6d5179875. 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/KRRAR2204969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968de6321e9e36a938e3e728bdc96f04d5555d50d2229d10fb5f8224c17e53d0. 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/KRRAR2204970.
Adagio - Piano Concerto No.2 in F.Minor, Op 21 2nd mov Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6203921621e32368476da00191cc4677384125425bdc3423dda25c611553f015. 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/KRRAR2204977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6e4244c9bb720fb11b6a316f1d6c38d45f302570450df2ab51bd31f1c09b3e. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:59:51Z), 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/KRRAR2204978.
Pirouettes & Waltz 1(Long version) - Ballet "Paquita", Act 3 Coda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c45493f11f3026f21763065ac225d75a2fe2b831c55af41c9ae6d37d1bae77. 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/KRRAR2204980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03709c124e3adee6d1233e8b02ccb9fa6cefab0575badd9a2edad5eb95741819. 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/KRRAR2205141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbc4ebeb9f20a8afae2e90d51a0263eaaef45d06e4f9aeb9738e07be0ff9b5e. 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/KRRAR2205142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf680beb374d50b5fc0f3d46bbaa0bbdd659a189299219d7b1793987f11ce0640. 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/KRRAR2205143.
Battement Tendus 1 (slow) -Ballet "The Awakening of Flora" Flora Variation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda16c790ca2d826e35eebe1a21ca863a43019c089f0efa5316fba190d0018de5. 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/KRRAR2205144.
Battement Tendus 2 (Medium) - Movie " The Pink Panther (Directed by Eunseok, Shin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fd236766bd18693314095971fa93416be5e034a2ad9f8eb13ed84bed961b8a. 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/KRRAR2205145.
Battement Tendus 3 (Medium) - Dream a little Dream of me (Directed by Eunseok, Shin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d927859fb5fd943d983a132345cb4572d77665db423c5353cd44119fc5761f. 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/KRRAR2205146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6995ffe0b3ef135b61bbd522a45df65a4a2df4d465deea46f299daee79147c18. 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/KRRAR2205147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e253fcdf40669f3e9e344f25c4c240d25a70732b455020dda060be369d14dda. 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/KRRAR2205148.
Battement Tendu Jete - Ballet "Giselle" Act 1 Peasant 1st Male Variation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e32f3c22401bb4fb856505a804cec0a6ad5f2254e2b24b88264b3a6a9a8ee6. 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/KRRAR2205149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a17175b8344f440a28c8c5d4c14d3fa2d61a9d8e6c5424517cc263fc8f74bc. 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/KRRAR2205150.
Battement Fondu- 겨울 연가 ost Treize jours En France
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24141c19872805b82f605fdf04170b1ec122d91a9e751ceddcb726b5bac20d93. 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/KRRAR2205151.
Battement Frappe - Ballet "La Fille Mal Gardee" Pas de Duex Coda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8adc462a09fc1876cdf9b576ced4227a351f7c900a598db7cd66d1c1161aad. 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/KRRAR2205152.
Adagio, Developpe - Ballet "The Sleeping Beauty" No. 28b Pas de duex Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c43133490edea95d4ed94d2870fdfdfdecd3d62517ae9f412827d67bf4881c8. 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/KRRAR2205155.
Grand Battement -Ballet "Don Quixote" Act 1 Kitri Variation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014cdd1c1fec2f03a2b3621a1acce1ea66cff5811c06f90040f5e845c6529628. 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/KRRAR2205156.
Limbering/Streching - Movie " Love Affair" Ost
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5621e5803b4beda415ccff4b78bca322287e1a94d4dc010687bc51ab58c8b6f. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/KRRAR2205157.
Adagio - Piano Sonata "Pathetique" 2nd mov.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329402737d68756e90dfdca90b6325e2d1185a8b8d1a63f3182f282d9a87af5b. 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/KRRAR2205158.
Battement Tedus - Ballet "The Talisman" Female Variation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9dc7213d10e3039c0c8de7d52800e622e21eefd0bf008e52ef94c6a21a7c227. 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/KRRAR2205159.
Grand Battement -Ballet "The Flames of Paris" Male Variation & Le Coraire Male Variation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050ccad29f7fb14a2019b7c8b7a3c09eaa081252eb00761ac74e4fdd9e01d91e. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:47:51Z), 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/KRRAR2205160.
Pirouettes - Ballet "Swan Lake" Pas de Duex Adagio & "Don Quixote" Pas de Duex Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44864cc519474f195f1a76ba495d5092d1997d8064c884b140ad41a726ae5262. 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/KRRAR2205161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e0f71c221a4c389b587f319808e034774b72b37e74cc438f99f815a42e3b04. 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/KRRAR2205162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61c58cddf0cd8d4a18dbafa88c3cdfd115d7f812fc7194e634e6be021eaebaf. 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/KRRAR2205163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d4addb27ffb209e9fc758d6ae0e4a66a54d01d880c2aede2a4584e2c717fc4. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:20:42Z), 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/KRRAR2205165.
Girl`s Pique Turns - Ballet " Swan Lake" Pas de Duex coda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d5f33e5e312d89e0abd57bd12144123fa4fc1559f3b236233615575f815012. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/KRRAR2205173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803f661a764f1cb2a1d66b3b7cb310d4ce89502ccc91bed7278f9c26219dab8d. 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/KRRAR2205174.