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 0xd103a70cfc8acff64214b8f31100caa5c7d1fe95ec2b0304bb1d6de672b982e5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cdea7ca2-375b-4703-bc6b-080eb024be36.json and https://artists.proofprofile.net/proofs/artist/cdea7ca2-375b-4703-bc6b-080eb024be36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aemeralds presents: Library Aesthetics, Vol. 1
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 0x3e2c74d1421b74096930f107d7442a0bb92b1c628ebb9bbe7368c660db2bfef6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMDA62204990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2aa2aabe5dfc38c41e31a101f49699beaca5e363263e3d519d209376bda768. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMDA62260781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167b8449746184eb2cad0fd89650d90a91109fe455309e30d9a327212d5994c8. 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/QMDA62248493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff28f1649d2e35ced33aa440055113a2679e32f189c2938716ec6e5c40373f9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMDA62215580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c12eaaf5f497f2239db569687677846c689024720106217f45e03f3c3667ca0. 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/QMDA62261856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecc1e7fe5bfc595f215298824b3d7ef65a849774eeba633a4eb1ee0fd588940. 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/QMDA62230559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc60cd089763be77ecfcdffd8c8eeb3fd8c8a3b7faef3cb6e9ff193df5cf233. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMDA62262219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046a4e203eecd6cc30c048af5edb18536904e7e286f5c4081cccbb1d46cba53f. 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/QMDA62253985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dae1c20c7e47da3df3ddf45fe27df88a98ccaa85742750099b8336ab3966ec. 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/QMDA62261933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9731f2add507004beef7a072db81a47d0f8570dd5c860f4f7571630ad91280. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMDA62261784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b53f76f88fad9bfa0b78721eabefeb221f385c45160cab633b33524869a3e81. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMDA62262295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf820b79329e91074e0e039add10ead1c81ca30f6a6cfa81553976fe99576c7b8. 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/QMDA62261803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd02627bae6b978f36faa013c19302e637f15ca954bb23d3bcf9b666b47d56c. 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/QMDA62261980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e21f8dd43a6bbdb5a94a5197a0cdb5b2569d9a931fe44c732734d2200dd4945. 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/QMBZ92280117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b3a6333e5854234f3d2c8e2f8264656803543d1250f56061b28a042d00eb62. 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/QMDA62247216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b3648fe53626bb5303aafe107a2af85b1bfd2f71b418a7a009cd8ee22c91f9. 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/QMDA62248494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d5ccdd43d6161196fbc4080d24599f5a9612add52e6735514b724148081c68. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMDA62262310.
Schumann: Kreisleriana, Op. 16: No. 4, Sehr langsam
Grieg: Lyric Pieces, Book I, Op. 12: No. 2, Valse
Lyric Pieces, Book I, Op. 12: No. 2, Valse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7bd3861ed3b537f5a749945429e55ff99b9933a11957214274dffcb62f24a9. 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/QMFME2475432.
Brahms: 4 Ballades, Op. 10 No. 4 in B Major
Schumann: Kreisleriana, Op. 16: No. 6, Sehr langsam
Chopin: Preludes, Op. 28: No. 13 in F-Sharp Major. Lento
Schumann: Kinderszenen, Op. 15: No. 7, Träumerei (Rêverie)
Preludes, Op. 28: No. 15 in D-Flat Major "Raindrop". Sostenuto
Fantaisie-Impromptu in C-Sharp Minor, Op. 66
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fcce88af42b5f1788d8702ec0944da62b65adf6b705c2737b206743f905b66. 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/QMBZ92357625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d3fa643b6d0c326e1b62e11b8fb1d9c0d9c4572c2054d74f68e67b58ca6407. 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/UKR6V2210535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b51512c4507a0628bdeddd00456e915a224bf223e3c1b9fdecdf1020b26b49. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUMEV2221920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6d66f61e4fbb136c754b97d2a7f44df25b1568a2a69784866e6de68fc1dc11. 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/QZAKB2453587.