Bisca may refer to: Bisca (card game), the Portuguese variant of the Italian game, Briscola the name of the playing card 7 in certain Portuguese games like Bisca or Sueca Bisca (Bishopric), a form
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 0x5de7db44f05ecdb8d358b7b848cd63e5b0cea415c8ba5097bd52585cd3df1cdb. 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/f4472be1-6317-45e6-a0de-680496ed4143.json and https://artists.proofprofile.net/proofs/artist/f4472be1-6317-45e6-a0de-680496ed4143.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sott'attacco dell'idiozia - Bisca version
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 0x624ba4cb62de119fcf92f21c98be0192c39600ac3bc05da89bf3a3f7ef75b85d. 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/ITBX31805501.
Sott'attacco dell'idiozia - Bisca & Almamegretta version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc0080fd7841e7ff00ed45bbb6f534bd0f21a925a2c937e74e70c92d3bc8f82. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/ITBX31805502.
Sott'attacco dell'idiozia - Bisca & 99 Posse version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c71de1ad2812d78078730b7ce7c27d571dc03c1e1fa43301f809e9f2e54a77a. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/ITBX31805503.
Sott'attacco dell'idiozia - Bisca, 99 Posse & Almamegretta version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed554f94572edb89e0114494569ea0a05a3ff9af0ede5a02b6079f20a442834. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITBX31805504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832e77a743a45d59608bc74a60dafdb9a6f7aa877e837fbcb6afb052e9de30f2. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/ITBX31800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c7045cf589de269ca9e1628da579de7f85980db07e210414aeacfdbc5c6094. 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/ITBX31800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b59395ecc63e8f7a263e8ba70d3feba32633bc1b444e4ec0d05e3783f988541. 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/ITBX31800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1803c1d13b91dad403637dceb77deb7f502404bd6a1e36cc39a973f542d8b8e6. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ITBX31800092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4459d089144caa0e99be3b4e38e77ceb07aab8ea4f03fa7c8e23f7489a2986ae. 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/ITBX31800093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1478e27d4ecfbc6364ee0cee7c11333c256278dcab7c38b77c95c91285258e0d. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/ITBX31800094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc25cec7b12e44efa8c8ae7d9fc2bc6a71a1ec179b0e0aa11a64992e129420e8. 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/ITBX31800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38f38bbf9ba55cb86bdc58b607591b96a7f5c1285db5b949c22e983441ebb94. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/ITBX31800099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad85ef6f29eed04f464387a2490bd2c5bdb5aa8ff4f5e0806e37b51b4cf7c80. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ITBX31800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29af34da5832b6906995a05d0478e1c622fe2e6a88afa0f0119ad65d937154b4. 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/ITBX31800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d44ad2c91ef3e3f4208f7fb03a7a96fc4484eee0fcc2d0c884ad6062fa68559. 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/ITBX31800128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b70c199264292ab4f9a65d6ec44f73e0e394fac6a1468ec2693b318ed1e5260. 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/ITBX31805302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb716adad936320e15f67fc67b9b5439e9907e131f9860e6eace1d3c943952e2. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/ITBX31805305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee3b069607179deaa8fed564e018713c2cb7fe6c3dc7ef5c705d7c155c9dd53. 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/ITBX31805307.
Cildren ov Babilon (L'Immortale soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d44ad2c91ef3e3f4208f7fb03a7a96fc4484eee0fcc2d0c884ad6062fa68559. 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/ITBX31800128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0587d7ca6a6ad7ee4bcc9bf415fecee7279c07295d4924d8f784b5074f5b044. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/ITB009900533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c89faf5bd6feb81953f4ffb4c3000cc7b6cae1c1e12ebc2532788b4eb466cd. 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/ITB009900514.