Rita Marcotulli (born 10 March 1959) is an Italian jazz pianist and composer. Career Born in Rome, Marcotulli is the daughter of a sound engineer who collaborated with Nino Rota and Ennio Morrico
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 0x37c76f146c44096cb0491ec527d85682f6dd08a51b330f0f8547ea610d3c4fdb. 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/33108bbf-5f29-42d0-9f46-ed8e779f20ee.json and https://artists.proofprofile.net/proofs/artist/33108bbf-5f29-42d0-9f46-ed8e779f20ee.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 0xa17667653f67340d21aea7ad4456fdc376fe0ef860abcdebc25a604d49cc25d6. 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/DEA891400411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fd26d6968008be6168e3c198261bac80c80b49328a3073379e974f0c6eb373. 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/DEA891400412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804dc568d4c394320ebebd1bff48693ed50451a71b8076b3d5cab8839cb36bac. 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/DEA891400413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656cb8bf6851beb2a168bfe6debefbb6e820aa835405f84b6e0798a7c0c37dda. 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/DEA891400414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f05d492db1131590e8570b2412d3b91d045ce03446ca2a4f184df9bc0b3fc55. 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/DEA891400416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582a7f1103c62ba8e95007f1e5e262170709ab786ebf86b744e9bb12a74196db. 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/DEA891400419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc69afba894cc21b36bbec545c136defbdd874aebbf3e4c1afa26f0d2317ec7a. 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/DEA891400421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ee8b5f0290056d56b79d55d577b228464bac7689433ac20c684e553f3223b3. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DEA891400410.
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 0x2c1e53a8d1e0735c7b3875eb869c6e1ef92399e94e30b6a86e81a68a1eddd826. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/DEA891400415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d9f617d2cc6641d4be60b9b8011eac036959a62998df27d1a7bd5cac8c8301. 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/DEA891400417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3764bff74d3e00b3888cff7c59b4e0a0c91ec878bf9df7fe55a472ec34567cde. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/DEA891400418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef9ad04f603d3285ee9a9d5c0a9fd985ffbf95e535574ce452cfd1bdf780e71. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/DEA891400420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a27ee81caf9ab661122b9347bccdf14f68aed54cae8c3020e3db8ce84a31851. 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/ITZJ52100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa98f51c7432de6ba50b4aa3ac8a09e51c50c32df719b36de6ce7f69ddedc67c. 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/ITZJ52100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9c14b2d721772fb2f0fc5c38946be3a69f0c39fa828a8a0923038154cc1343. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ITZJ52100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5770fa77ecbaafebbe4d0543d09ba4259f89ac6c3a56ff8add4013ee8f19053. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ITZJ52100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a76c1e5cc8b120027183014503ecf780ba19155b9f98bc734128ec1b460268d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/ITZJ52100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09aef2d099ee07446e73fb7ae5cdc216aaa6a488f5bbcd8c3dc7e6fe964eaa1b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ITZJ52100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfc2785bd3f2dba9b9a3ba1af2e3ff3a243b97578d44ac4092c0f447abc1ded. 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/ITZJ52100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc5be8fcc70c5dbbde24dd101114588b8c125c51b191fce66c80466a817b8b8. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ITZJ52100059.